Initial TicketTracker release

.dockerignore

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+node_modules
+backend/dist
+frontend/dist
+.git
+.env
+*.log
+npm-debug.log*
+coverage
+*.tsbuildinfo

.env.docker-external.example

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+TICKETTRACKER_IMAGE=git.d-razz.de/michael/tickettracker:latest
+APP_PORT=3910
+
+DATABASE_URL=postgresql://tickettracker:change-me@10.10.10.23:5432/tickettracker
+DB_POOL_SIZE=10
+
+ADMIN_USERNAME=admin
+ADMIN_PASSWORD=change-me-now
+ADMIN_DISPLAY_NAME=Admin
+
+COOKIE_SECURE=false
+SESSION_MAX_AGE_MS=1209600000

.env.docker-postgres.example

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+TICKETTRACKER_IMAGE=git.d-razz.de/michael/tickettracker:latest
+APP_PORT=3910
+
+POSTGRES_DB=tickettracker
+POSTGRES_USER=tickettracker
+POSTGRES_PASSWORD=change-me-db-password
+DB_POOL_SIZE=10
+
+ADMIN_USERNAME=admin
+ADMIN_PASSWORD=change-me-now
+ADMIN_DISPLAY_NAME=Admin
+
+COOKIE_SECURE=false
+SESSION_MAX_AGE_MS=1209600000

.env.example

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+DATABASE_URL=postgresql://tickettracker:change-me@10.10.10.23:5432/tickettracker
+ADMIN_USERNAME=admin
+ADMIN_PASSWORD=change-me-now
+ADMIN_DISPLAY_NAME=Admin
+APP_PORT=3910
+TICKETTRACKER_IMAGE=git.d-razz.de/michael/tickettracker:latest
+COOKIE_SECURE=false
+DB_POOL_SIZE=10

.gitignore

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+.env
+.env.*
+!.env.example
+!.env.docker-external.example
+!.env.docker-postgres.example
+node_modules/
+backend/dist/
+frontend/.next/
+frontend/dist/
+frontend/out/
+coverage/
+*.log
+npm-debug.log*
+*.tsbuildinfo
+.DS_Store

Dockerfile

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+FROM node:22-bookworm-slim AS builder
+WORKDIR /app
+ENV NEXT_TELEMETRY_DISABLED=1
+
+COPY package.json package-lock.json ./
+COPY backend/package.json ./backend/package.json
+COPY frontend/package.json ./frontend/package.json
+RUN npm ci
+
+COPY . .
+RUN npm run build && npm prune --omit=dev
+
+FROM node:22-bookworm-slim AS runtime
+WORKDIR /app
+ENV NODE_ENV=production
+ENV PORT=3000
+ENV BACKEND_PORT=3001
+ENV SERVE_FRONTEND=false
+ENV NEXT_TELEMETRY_DISABLED=1
+
+COPY --from=builder /app/node_modules ./node_modules
+COPY --from=builder /app/package.json ./
+COPY --from=builder /app/backend/package.json ./backend/package.json
+COPY --from=builder /app/backend/dist ./backend/dist
+COPY --from=builder /app/frontend/package.json ./frontend/package.json
+COPY --from=builder /app/frontend/.next ./frontend/.next
+COPY --from=builder /app/frontend/public ./frontend/public
+COPY scripts ./scripts
+RUN chmod +x ./scripts/start-container.sh
+
+EXPOSE 3000
+CMD ["./scripts/start-container.sh"]

README.md

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+# TicketTracker
+
+WebApp zum Erfassen von Ticket-Sessions mit Pausen, Minutenrundung und monatlichem Abschlussprozess.
+Sessions können in Monats- und Tagesansichten ausgewertet, bewertet, geschlossen, wieder geöffnet und gelöscht werden.
+
+## Dokumentation
+
+- [Benutzeranleitung](docs/user-guide.md)
+- [Docker Release / Gitea Deployment](docs/docker-release.md)
+
+## Stack
+
+- Frontend: Next.js + React + shadcn/ui + Tailwind CSS
+- Backend: Node.js + Express + TypeScript
+- Datenbank: PostgreSQL 17, wahlweise extern via `DATABASE_URL` oder als Container im Docker-Stack
+- Deployment: ein Docker-Container, Backend serviert das gebaute Frontend
+
+shadcn/ui liefert kopierbare, lokal versionierte React-Komponenten auf Basis von Tailwind CSS. Die App nutzt ein eigenes Dark-Mode-Theme mit responsiven Layouts für Desktop und Mobile.
+
+## Lokal starten
+
+Als einzelner lokaler Server auf Port `3910`:
+
+```bash
+npm install
+export DATABASE_URL='postgresql://user:pass@localhost:5432/tickettracker'
+export ADMIN_USERNAME='admin'
+export ADMIN_PASSWORD='ein-sicheres-passwort'
+npm run serve:local
+```
+
+Danach ist die App unter `http://localhost:3910` erreichbar.
+
+Beim ersten Start wird automatisch ein Admin angelegt, wenn noch keine Benutzer existieren. Ohne `ADMIN_PASSWORD` wird `admin/admin` verwendet; das ist nur als Notfall-Fallback gedacht.
+
+Für die getrennte Entwicklung:
+
+```bash
+npm install
+export DATABASE_URL='postgresql://user:pass@localhost:5432/tickettracker'
+PORT=3001 npm run dev:backend
+API_PROXY_TARGET=http://127.0.0.1:3001 PORT=3910 npm run dev:frontend
+```
+
+Frontend: `http://localhost:3910`
+Backend/API: `http://localhost:3001`
+
+## Docker
+
+Externe PostgreSQL-Datenbank:
+
+```bash
+docker build -t tickettracker:local .
+docker run --rm -p 3910:3000 \
+  -e DATABASE_URL='postgresql://user:pass@host:5432/tickettracker' \
+  tickettracker:local
+```
+
+Compose mit externer Datenbank:
+
+```bash
+cp .env.docker-external.example .env.docker-external
+docker compose --env-file .env.docker-external -f compose.yml up -d
+```
+
+Compose mit PostgreSQL 17 im Stack:
+
+```bash
+cp .env.docker-postgres.example .env.docker-postgres
+docker compose --env-file .env.docker-postgres -f compose.postgres.yml up -d
+```
+
+## Gitea Container Registry
+
+Vor dem ersten Push einmal anmelden:
+
+```bash
+docker login git.d-razz.de
+```
+
+Dann Image bauen und pushen:
+
+```bash
+chmod +x scripts/build-and-push-gitea.sh
+./scripts/build-and-push-gitea.sh
+```
+
+Auf dem Docker-Server:
+
+```bash
+docker compose --env-file .env.docker-external -f compose.yml up -d
+```
+
+Wenn noch kein Gitea-Repository existiert, erst in Gitea `michael/tickettracker` leer anlegen und danach:
+
+```bash
+chmod +x scripts/init-gitea-repo.sh
+./scripts/init-gitea-repo.sh
+git branch -M main
+git push -u origin main
+```

backend/package.json

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+{
+  "name": "@tickettracker/backend",
+  "version": "1.0.0",
+  "private": true,
+  "type": "module",
+  "main": "dist/index.js",
+  "scripts": {
+    "dev": "tsx watch src/index.ts",
+    "build": "tsc -p tsconfig.json",
+    "start": "node dist/index.js",
+    "typecheck": "tsc -p tsconfig.json --noEmit"
+  },
+  "dependencies": {
+    "cors": "^2.8.5",
+    "dotenv": "^16.4.7",
+    "express": "^5.1.0",
+    "pg": "^8.13.1"
+  },
+  "devDependencies": {
+    "@types/cors": "^2.8.17",
+    "@types/express": "^5.0.0",
+    "@types/node": "^22.10.2",
+    "@types/pg": "^8.11.10",
+    "tsx": "^4.19.2",
+    "typescript": "^5.7.2"
+  }
+}

backend/src/auth.ts

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+import crypto from "node:crypto";
+import { promisify } from "node:util";
+import type { NextFunction, Request, Response } from "express";
+import { query } from "./db.js";
+
+const scrypt = promisify(crypto.scrypt);
+const sessionCookieName = "tickettracker_session";
+const sessionMaxAgeMs = Number(process.env.SESSION_MAX_AGE_MS ?? 1000 * 60 * 60 * 24 * 14);
+
+export type UserRole = "admin" | "user";
+
+export type AuthUser = {
+  id: string;
+  username: string;
+  display_name: string;
+  role: UserRole;
+  active: boolean;
+};
+
+declare global {
+  namespace Express {
+    interface Request {
+      user?: AuthUser;
+      authSessionHash?: string;
+    }
+  }
+}
+
+export async function hashPassword(password: string) {
+  const salt = crypto.randomBytes(16).toString("base64url");
+  const key = (await scrypt(password, salt, 64)) as Buffer;
+  return `scrypt$${salt}$${key.toString("base64url")}`;
+}
+
+export async function verifyPassword(password: string, storedHash: string) {
+  const [algorithm, salt, expected] = storedHash.split("$");
+
+  if (algorithm !== "scrypt" || !salt || !expected) {
+    return false;
+  }
+
+  const expectedBuffer = Buffer.from(expected, "base64url");
+  const actualBuffer = (await scrypt(password, salt, expectedBuffer.length)) as Buffer;
+
+  return expectedBuffer.length === actualBuffer.length && crypto.timingSafeEqual(expectedBuffer, actualBuffer);
+}
+
+export function hashToken(token: string) {
+  return crypto.createHash("sha256").update(token).digest("hex");
+}
+
+function readCookie(req: Request, name: string) {
+  const rawCookie = req.headers.cookie;
+
+  if (!rawCookie) {
+    return null;
+  }
+
+  const cookies = rawCookie.split(";").map((part) => part.trim());
+  const prefix = `${name}=`;
+  const match = cookies.find((cookie) => cookie.startsWith(prefix));
+
+  if (!match) {
+    return null;
+  }
+
+  return decodeURIComponent(match.slice(prefix.length));
+}
+
+function publicUser(user: AuthUser) {
+  return {
+    id: user.id,
+    username: user.username,
+    display_name: user.display_name,
+    role: user.role,
+    active: user.active
+  };
+}
+
+export async function createAuthSession(res: Response, userId: string) {
+  const token = crypto.randomBytes(32).toString("base64url");
+  const tokenHash = hashToken(token);
+  const expiresAt = new Date(Date.now() + sessionMaxAgeMs);
+
+  await query(
+    `
+      INSERT INTO auth_sessions (token_hash, user_id, expires_at)
+      VALUES ($1, $2, $3);
+    `,
+    [tokenHash, userId, expiresAt.toISOString()]
+  );
+
+  res.cookie(sessionCookieName, token, {
+    httpOnly: true,
+    sameSite: "lax",
+    secure: process.env.COOKIE_SECURE === "true",
+    maxAge: sessionMaxAgeMs,
+    path: "/"
+  });
+}
+
+export async function clearAuthSession(req: Request, res: Response) {
+  if (req.authSessionHash) {
+    await query("DELETE FROM auth_sessions WHERE token_hash = $1;", [req.authSessionHash]);
+  }
+
+  res.clearCookie(sessionCookieName, {
+    sameSite: "lax",
+    secure: process.env.COOKIE_SECURE === "true",
+    path: "/"
+  });
+}
+
+export async function requireAuth(req: Request, res: Response, next: NextFunction) {
+  try {
+    const token = readCookie(req, sessionCookieName);
+
+    if (!token) {
+      res.status(401).json({ error: "Nicht angemeldet" });
+      return;
+    }
+
+    const tokenHash = hashToken(token);
+    const result = await query<AuthUser>(
+      `
+        SELECT u.id, u.username, u.display_name, u.role, u.active
+        FROM auth_sessions s
+        JOIN users u ON u.id = s.user_id
+        WHERE s.token_hash = $1
+          AND s.expires_at > now()
+          AND u.active = true;
+      `,
+      [tokenHash]
+    );
+
+    if (result.rows.length === 0) {
+      res.status(401).json({ error: "Sitzung ist abgelaufen" });
+      return;
+    }
+
+    req.user = publicUser(result.rows[0]);
+    req.authSessionHash = tokenHash;
+    next();
+  } catch (error) {
+    next(error);
+  }
+}
+
+export function requireAdmin(req: Request, res: Response, next: NextFunction) {
+  if (req.user?.role !== "admin") {
+    res.status(403).json({ error: "Adminrechte erforderlich" });
+    return;
+  }
+
+  next();
+}
+
+export function currentUser(req: Request) {
+  if (!req.user) {
+    throw Object.assign(new Error("Nicht angemeldet"), { status: 401 });
+  }
+
+  return req.user;
+}

backend/src/db.ts

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+import pg from "pg";
+
+const { Pool } = pg;
+
+const connectionString = process.env.DATABASE_URL;
+
+if (!connectionString) {
+  throw new Error("DATABASE_URL is required");
+}
+
+export const pool = new Pool({
+  connectionString,
+  max: Number(process.env.DB_POOL_SIZE ?? 10),
+  idleTimeoutMillis: 30_000
+});
+
+export async function query<T extends pg.QueryResultRow = pg.QueryResultRow>(text: string, params: unknown[] = []) {
+  return pool.query<T>(text, params);
+}
+
+export async function withTransaction<T>(callback: (client: pg.PoolClient) => Promise<T>) {
+  const client = await pool.connect();
+
+  try {
+    await client.query("BEGIN");
+    const result = await callback(client);
+    await client.query("COMMIT");
+    return result;
+  } catch (error) {
+    await client.query("ROLLBACK");
+    throw error;
+  } finally {
+    client.release();
+  }
+}

backend/src/migrations.ts

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+import { query } from "./db.js";
+import { hashPassword } from "./auth.js";
+
+async function ensureMigrationAdmin() {
+  const username = process.env.ADMIN_USERNAME?.trim() || "admin";
+  const password = process.env.ADMIN_PASSWORD ?? "admin";
+  const displayName = process.env.ADMIN_DISPLAY_NAME?.trim() || "Admin";
+
+  const existingUsers = await query<{ count: string }>("SELECT COUNT(*) AS count FROM users;");
+
+  if (Number(existingUsers.rows[0]?.count ?? 0) === 0) {
+    await query(
+      `
+        INSERT INTO users (username, display_name, password_hash, role)
+        VALUES ($1, $2, $3, 'admin');
+      `,
+      [username, displayName, await hashPassword(password)]
+    );
+
+    if (!process.env.ADMIN_PASSWORD) {
+      console.warn("Initialer Admin wurde mit admin/admin angelegt. Bitte Passwort über ADMIN_PASSWORD setzen oder im Adminbereich ändern.");
+    }
+  }
+
+  const adminResult = await query<{ id: string }>("SELECT id FROM users WHERE role = 'admin' ORDER BY id ASC LIMIT 1;");
+
+  if (adminResult.rows.length === 0) {
+    throw new Error("At least one admin user is required");
+  }
+
+  return adminResult.rows[0].id;
+}
+
+async function ensureClosureOwnership(table: string, column: string, primaryKeyColumns: string[], adminId: string) {
+  await query(`ALTER TABLE ${table} ADD COLUMN IF NOT EXISTS user_id BIGINT REFERENCES users(id);`);
+  await query(`UPDATE ${table} SET user_id = $1 WHERE user_id IS NULL;`, [adminId]);
+  await query(`ALTER TABLE ${table} ALTER COLUMN user_id SET NOT NULL;`);
+  await query(`ALTER TABLE ${table} DROP CONSTRAINT IF EXISTS ${table}_pkey;`);
+  await query(`ALTER TABLE ${table} ADD CONSTRAINT ${table}_pkey PRIMARY KEY (${primaryKeyColumns.join(", ")}, user_id);`);
+  await query(`CREATE INDEX IF NOT EXISTS idx_${table}_${column}_user ON ${table}(${column}, user_id);`);
+}
+
+export async function migrate() {
+  await query(`
+    CREATE TABLE IF NOT EXISTS users (
+      id BIGSERIAL PRIMARY KEY,
+      username TEXT NOT NULL UNIQUE,
+      display_name TEXT NOT NULL,
+      password_hash TEXT NOT NULL,
+      role TEXT NOT NULL DEFAULT 'user',
+      active BOOLEAN NOT NULL DEFAULT true,
+      created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+      updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+      CONSTRAINT users_role_valid CHECK (role IN ('admin', 'user')),
+      CONSTRAINT users_username_format CHECK (char_length(username) BETWEEN 3 AND 40 AND username !~ '\\s')
+    );
+  `);
+
+  await query(`
+    ALTER TABLE users
+      DROP CONSTRAINT IF EXISTS users_username_format,
+      ADD CONSTRAINT users_username_format CHECK (char_length(username) BETWEEN 3 AND 40 AND username !~ '\\s');
+  `);
+
+  await query(`
+    CREATE TABLE IF NOT EXISTS auth_sessions (
+      token_hash TEXT PRIMARY KEY,
+      user_id BIGINT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+      expires_at TIMESTAMPTZ NOT NULL,
+      created_at TIMESTAMPTZ NOT NULL DEFAULT now()
+    );
+  `);
+
+  await query("CREATE INDEX IF NOT EXISTS idx_auth_sessions_user ON auth_sessions(user_id);");
+  await query("CREATE INDEX IF NOT EXISTS idx_auth_sessions_expires ON auth_sessions(expires_at);");
+
+  const adminId = await ensureMigrationAdmin();
+
+  await query(`
+    CREATE TABLE IF NOT EXISTS app_settings (
+      key TEXT PRIMARY KEY,
+      value TEXT NOT NULL,
+      updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
+    );
+  `);
+
+  await query(`
+    CREATE TABLE IF NOT EXISTS organizations (
+      id BIGSERIAL PRIMARY KEY,
+      zammad_id BIGINT NOT NULL UNIQUE,
+      name TEXT NOT NULL UNIQUE,
+      synced_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+      created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+      updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
+    );
+  `);
+
+  await query("ALTER TABLE organizations DROP COLUMN IF EXISTS active;");
+  await query("ALTER TABLE organizations DROP COLUMN IF EXISTS shared;");
+  await query("ALTER TABLE organizations DROP COLUMN IF EXISTS vip;");
+  await query("ALTER TABLE organizations DROP COLUMN IF EXISTS domain;");
+  await query("ALTER TABLE organizations DROP COLUMN IF EXISTS note;");
+  await query("ALTER TABLE organizations DROP COLUMN IF EXISTS zammad_updated_at;");
+  await query("CREATE INDEX IF NOT EXISTS idx_organizations_name_lower ON organizations(lower(name));");
+  await query("DROP INDEX IF EXISTS idx_organizations_active_name;");
+
+  await query(`
+    CREATE TABLE IF NOT EXISTS tickets (
+      id BIGSERIAL PRIMARY KEY,
+      ticket_number TEXT NOT NULL UNIQUE,
+      organization_id BIGINT REFERENCES organizations(id),
+      customer_name TEXT,
+      work_type TEXT,
+      created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+      CONSTRAINT ticket_number_format CHECK (ticket_number ~ '^Ticket#[0-9]{6}$'),
+      CONSTRAINT ticket_work_type_valid CHECK (work_type IS NULL OR work_type IN ('support', 'consulting'))
+    );
+  `);
+
+  await query("ALTER TABLE tickets ADD COLUMN IF NOT EXISTS customer_name TEXT;");
+  await query("ALTER TABLE tickets ADD COLUMN IF NOT EXISTS organization_id BIGINT REFERENCES organizations(id);");
+  await query("ALTER TABLE tickets ADD COLUMN IF NOT EXISTS work_type TEXT;");
+  await query(`
+    ALTER TABLE tickets
+      DROP CONSTRAINT IF EXISTS ticket_number_format,
+      ADD CONSTRAINT ticket_number_format CHECK (ticket_number ~ '^(Ticket#[0-9]{6}|Fix#[0-9]+)$');
+  `);
+  await query(`
+    DO $$
+    BEGIN
+      IF NOT EXISTS (
+        SELECT 1 FROM pg_constraint WHERE conname = 'ticket_work_type_valid'
+      ) THEN
+        ALTER TABLE tickets
+          ADD CONSTRAINT ticket_work_type_valid CHECK (work_type IS NULL OR work_type IN ('support', 'consulting'));
+      END IF;
+    END $$;
+  `);
+
+  await query(`
+    CREATE TABLE IF NOT EXISTS sessions (
+      id BIGSERIAL PRIMARY KEY,
+      ticket_id BIGINT NOT NULL REFERENCES tickets(id) ON DELETE CASCADE,
+      organization_id BIGINT REFERENCES organizations(id),
+      customer_name TEXT NOT NULL,
+      activity TEXT NOT NULL,
+      work_type TEXT NOT NULL,
+      user_id BIGINT REFERENCES users(id),
+      started_at TIMESTAMPTZ NOT NULL,
+      ended_at TIMESTAMPTZ NOT NULL,
+      duration_seconds INTEGER NOT NULL,
+      rounded_minutes INTEGER NOT NULL,
+      billing_status TEXT,
+      billing_updated_at TIMESTAMPTZ,
+      created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+      CONSTRAINT work_type_valid CHECK (work_type IN ('support', 'consulting')),
+      CONSTRAINT billing_status_valid CHECK (billing_status IS NULL OR billing_status IN ('billed', 'non_billable')),
+      CONSTRAINT duration_non_negative CHECK (duration_seconds >= 0),
+      CONSTRAINT rounded_minutes_positive CHECK (rounded_minutes >= 1),
+      CONSTRAINT ended_after_started CHECK (ended_at >= started_at)
+    );
+  `);
+
+  await query("ALTER TABLE sessions ADD COLUMN IF NOT EXISTS user_id BIGINT REFERENCES users(id);");
+  await query("ALTER TABLE sessions ADD COLUMN IF NOT EXISTS organization_id BIGINT REFERENCES organizations(id);");
+  await query("ALTER TABLE sessions ADD COLUMN IF NOT EXISTS recurring_billing_id BIGINT;");
+  await query("ALTER TABLE sessions ADD COLUMN IF NOT EXISTS recurring_billing_slot_id BIGINT;");
+  await query("ALTER TABLE sessions ADD COLUMN IF NOT EXISTS recurring_occurrence_date DATE;");
+  await query("ALTER TABLE sessions ADD COLUMN IF NOT EXISTS recurring_occurrence_key TEXT;");
+  await query("UPDATE sessions SET user_id = $1 WHERE user_id IS NULL;", [adminId]);
+  await query("ALTER TABLE sessions ALTER COLUMN user_id SET NOT NULL;");
+
+  await query(`
+    CREATE TABLE IF NOT EXISTS recurring_billings (
+      id BIGSERIAL PRIMARY KEY,
+      user_id BIGINT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+      ticket_number TEXT,
+      organization_id BIGINT NOT NULL REFERENCES organizations(id),
+      activity TEXT NOT NULL,
+      work_type TEXT NOT NULL,
+      recurrence_type TEXT NOT NULL,
+      interval_value INTEGER NOT NULL DEFAULT 1,
+      valid_from DATE NOT NULL,
+      valid_until DATE,
+      start_time TIME NOT NULL DEFAULT '09:00',
+      active BOOLEAN NOT NULL DEFAULT true,
+      created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+      updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+      CONSTRAINT recurring_billings_work_type_valid CHECK (work_type IN ('support', 'consulting')),
+      CONSTRAINT recurring_billings_type_valid CHECK (recurrence_type IN ('weekly', 'every_n_weeks')),
+      CONSTRAINT recurring_billings_interval_positive CHECK (interval_value >= 1),
+      CONSTRAINT recurring_billings_valid_range CHECK (valid_until IS NULL OR valid_until >= valid_from)
+    );
+  `);
+
+  await query("ALTER TABLE recurring_billings ALTER COLUMN ticket_number DROP NOT NULL;");
+  await query("ALTER TABLE recurring_billings DROP CONSTRAINT IF EXISTS recurring_billings_ticket_number_format;");
+  await query("UPDATE recurring_billings SET recurrence_type = 'every_n_weeks' WHERE recurrence_type = 'every_n_days';");
+  await query(`
+    ALTER TABLE recurring_billings
+      DROP CONSTRAINT IF EXISTS recurring_billings_type_valid,
+      ADD CONSTRAINT recurring_billings_type_valid CHECK (recurrence_type IN ('weekly', 'every_n_weeks'));
+  `);
+
+  await query(`
+    CREATE TABLE IF NOT EXISTS recurring_billing_slots (
+      id BIGSERIAL PRIMARY KEY,
+      recurring_billing_id BIGINT NOT NULL REFERENCES recurring_billings(id) ON DELETE CASCADE,
+      weekday INTEGER,
+      start_time TIME,
+      duration_minutes INTEGER NOT NULL,
+      created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+      CONSTRAINT recurring_billing_slots_weekday_valid CHECK (weekday IS NULL OR weekday BETWEEN 0 AND 6),
+      CONSTRAINT recurring_billing_slots_duration_positive CHECK (duration_minutes >= 1)
+    );
+  `);
+
+  await query(`
+    CREATE TABLE IF NOT EXISTS recurring_billing_exceptions (
+      id BIGSERIAL PRIMARY KEY,
+      recurring_billing_id BIGINT NOT NULL REFERENCES recurring_billings(id) ON DELETE CASCADE,
+      recurring_billing_slot_id BIGINT REFERENCES recurring_billing_slots(id) ON DELETE CASCADE,
+      occurrence_date DATE NOT NULL,
+      action TEXT NOT NULL,
+      created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+      CONSTRAINT recurring_billing_exceptions_action_valid CHECK (action IN ('cancelled')),
+      UNIQUE (recurring_billing_id, recurring_billing_slot_id, occurrence_date)
+    );
+  `);
+
+  await query(`
+    DO $$
+    BEGIN
+      IF NOT EXISTS (
+        SELECT 1 FROM pg_constraint WHERE conname = 'sessions_recurring_billing_fkey'
+      ) THEN
+        ALTER TABLE sessions
+          ADD CONSTRAINT sessions_recurring_billing_fkey
+          FOREIGN KEY (recurring_billing_id) REFERENCES recurring_billings(id) ON DELETE SET NULL;
+      END IF;
+      IF NOT EXISTS (
+        SELECT 1 FROM pg_constraint WHERE conname = 'sessions_recurring_billing_slot_fkey'
+      ) THEN
+        ALTER TABLE sessions
+          ADD CONSTRAINT sessions_recurring_billing_slot_fkey
+          FOREIGN KEY (recurring_billing_slot_id) REFERENCES recurring_billing_slots(id) ON DELETE SET NULL;
+      END IF;
+    END $$;
+  `);
+
+  await query(`
+    CREATE TABLE IF NOT EXISTS ticket_month_closures (
+      ticket_id BIGINT NOT NULL REFERENCES tickets(id) ON DELETE CASCADE,
+      user_id BIGINT REFERENCES users(id),
+      month DATE NOT NULL,
+      closed_at TIMESTAMPTZ NOT NULL DEFAULT now()
+    );
+  `);
+
+  await query(`
+    CREATE TABLE IF NOT EXISTS month_closures (
+      user_id BIGINT REFERENCES users(id),
+      month DATE NOT NULL,
+      closed_at TIMESTAMPTZ NOT NULL DEFAULT now()
+    );
+  `);
+
+  await query(`
+    CREATE TABLE IF NOT EXISTS ticket_day_closures (
+      ticket_id BIGINT NOT NULL REFERENCES tickets(id) ON DELETE CASCADE,
+      user_id BIGINT REFERENCES users(id),
+      day DATE NOT NULL,
+      closed_at TIMESTAMPTZ NOT NULL DEFAULT now()
+    );
+  `);
+
+  await query(`
+    CREATE TABLE IF NOT EXISTS day_closures (
+      user_id BIGINT REFERENCES users(id),
+      day DATE NOT NULL,
+      closed_at TIMESTAMPTZ NOT NULL DEFAULT now()
+    );
+  `);
+
+  await query(`
+    CREATE TABLE IF NOT EXISTS ticket_day_billings (
+      ticket_id BIGINT NOT NULL REFERENCES tickets(id) ON DELETE CASCADE,
+      user_id BIGINT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+      day DATE NOT NULL,
+      billed_minutes INTEGER NOT NULL,
+      created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+      updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+      PRIMARY KEY (ticket_id, user_id, day),
+      CONSTRAINT ticket_day_billings_minutes_non_negative CHECK (billed_minutes >= 0)
+    );
+  `);
+
+  await ensureClosureOwnership("ticket_month_closures", "month", ["ticket_id", "month"], adminId);
+  await ensureClosureOwnership("month_closures", "month", ["month"], adminId);
+  await ensureClosureOwnership("ticket_day_closures", "day", ["ticket_id", "day"], adminId);
+  await ensureClosureOwnership("day_closures", "day", ["day"], adminId);
+
+  await query("CREATE INDEX IF NOT EXISTS idx_sessions_started_at ON sessions(started_at);");
+  await query("CREATE INDEX IF NOT EXISTS idx_sessions_ticket_started ON sessions(ticket_id, started_at);");
+  await query("CREATE INDEX IF NOT EXISTS idx_sessions_user_started ON sessions(user_id, started_at);");
+  await query("CREATE INDEX IF NOT EXISTS idx_sessions_user_ticket_started ON sessions(user_id, ticket_id, started_at);");
+  await query("CREATE INDEX IF NOT EXISTS idx_sessions_user_organization_started ON sessions(user_id, organization_id, started_at);");
+  await query("CREATE UNIQUE INDEX IF NOT EXISTS idx_sessions_recurring_occurrence_key ON sessions(recurring_occurrence_key) WHERE recurring_occurrence_key IS NOT NULL;");
+  await query("CREATE INDEX IF NOT EXISTS idx_sessions_billing_status ON sessions(billing_status);");
+  await query("CREATE INDEX IF NOT EXISTS idx_ticket_day_closures_day ON ticket_day_closures(day);");
+  await query("CREATE INDEX IF NOT EXISTS idx_ticket_day_billings_user_day ON ticket_day_billings(user_id, day);");
+  await query("CREATE INDEX IF NOT EXISTS idx_recurring_billings_user_active ON recurring_billings(user_id, active);");
+  await query("UPDATE recurring_billings SET active = true WHERE active = false;");
+  await query(`
+    WITH deleted_orphan_sessions AS (
+      DELETE FROM sessions s
+      WHERE s.recurring_occurrence_key IS NOT NULL
+        AND split_part(s.recurring_occurrence_key, ':', 1) ~ '^[0-9]+$'
+        AND NOT EXISTS (
+          SELECT 1
+          FROM recurring_billings rb
+          WHERE rb.id = split_part(s.recurring_occurrence_key, ':', 1)::bigint
+        )
+      RETURNING
+        ticket_id,
+        user_id,
+        (started_at AT TIME ZONE 'UTC')::date AS day,
+        date_trunc('month', started_at AT TIME ZONE 'UTC')::date AS month
+    ),
+    deleted_ticket_month_closures AS (
+      DELETE FROM ticket_month_closures tmc
+      USING deleted_orphan_sessions dos
+      WHERE tmc.ticket_id = dos.ticket_id
+        AND tmc.user_id = dos.user_id
+        AND tmc.month = dos.month
+      RETURNING tmc.ticket_id
+    ),
+    deleted_month_closures AS (
+      DELETE FROM month_closures mc
+      USING deleted_orphan_sessions dos
+      WHERE mc.user_id = dos.user_id
+        AND mc.month = dos.month
+      RETURNING mc.user_id
+    ),
+    deleted_ticket_day_closures AS (
+      DELETE FROM ticket_day_closures tdc
+      USING deleted_orphan_sessions dos
+      WHERE tdc.ticket_id = dos.ticket_id
+        AND tdc.user_id = dos.user_id
+        AND tdc.day = dos.day
+      RETURNING tdc.ticket_id
+    ),
+    deleted_day_closures AS (
+      DELETE FROM day_closures dc
+      USING deleted_orphan_sessions dos
+      WHERE dc.user_id = dos.user_id
+        AND dc.day = dos.day
+      RETURNING dc.user_id
+    )
+    DELETE FROM tickets t
+    WHERE t.id IN (SELECT ticket_id FROM deleted_orphan_sessions)
+      AND NOT EXISTS (
+        SELECT 1
+        FROM sessions s
+        WHERE s.ticket_id = t.id
+      );
+  `);
+  await query(`
+    DELETE FROM tickets t
+    WHERE t.ticket_number ~ '^Fix#[0-9]+$'
+      AND NOT EXISTS (
+        SELECT 1
+        FROM sessions s
+        WHERE s.ticket_id = t.id
+      )
+      AND NOT EXISTS (
+        SELECT 1
+        FROM recurring_billings rb
+        WHERE rb.id = substring(t.ticket_number FROM 5)::bigint
+      );
+  `);
+
+  await query(`
+    UPDATE tickets t
+    SET customer_name = latest.customer_name,
+        work_type = latest.work_type
+    FROM (
+      SELECT DISTINCT ON (ticket_id)
+        ticket_id,
+        customer_name,
+        work_type
+      FROM sessions
+      ORDER BY ticket_id, started_at DESC
+    ) latest
+    WHERE t.id = latest.ticket_id
+      AND (t.customer_name IS NULL OR t.work_type IS NULL);
+  `);
+}

backend/src/validation.ts

@@ -0,0 +1,135 @@
+export const ticketPattern = /^Ticket#\d{6}$/;
+export const trackableTicketPattern = /^(Ticket#\d{6}|Fix#\d+)$/;
+export const monthPattern = /^\d{4}-\d{2}$/;
+export const dayPattern = /^\d{4}-\d{2}-\d{2}$/;
+export const usernamePattern = /^\S{3,40}$/u;
+
+export function requireString(value: unknown, field: string) {
+  if (typeof value !== "string" || value.trim().length === 0) {
+    throw badRequest(`${field} is required`);
+  }
+
+  return value.trim();
+}
+
+export function parseTicketNumber(value: unknown) {
+  const ticketNumber = requireString(value, "ticketNumber");
+
+  if (!ticketPattern.test(ticketNumber)) {
+    throw badRequest("ticketNumber must match Ticket#XXXXXX");
+  }
+
+  return ticketNumber;
+}
+
+export function parseTrackableTicketNumber(value: unknown) {
+  const ticketNumber = requireString(value, "ticketNumber");
+
+  if (!trackableTicketPattern.test(ticketNumber)) {
+    throw badRequest("ticketNumber must match Ticket#XXXXXX or Fix#ID");
+  }
+
+  return ticketNumber;
+}
+
+export function parseUsername(value: unknown) {
+  const username = requireString(value, "username");
+
+  if (!usernamePattern.test(username)) {
+    throw badRequest("username must be 3-40 characters without spaces");
+  }
+
+  return username;
+}
+
+export function parseMonth(value: string) {
+  if (!monthPattern.test(value)) {
+    throw badRequest("month must use YYYY-MM");
+  }
+
+  const monthStart = `${value}-01`;
+  const date = new Date(`${monthStart}T00:00:00.000Z`);
+
+  if (Number.isNaN(date.getTime()) || date.getUTCMonth() + 1 !== Number(value.slice(5, 7))) {
+    throw badRequest("month is invalid");
+  }
+
+  const next = new Date(date);
+  next.setUTCMonth(next.getUTCMonth() + 1);
+
+  return {
+    label: value,
+    start: monthStart,
+    startIso: date.toISOString(),
+    endIso: next.toISOString()
+  };
+}
+
+export function parseDay(value: string) {
+  if (!dayPattern.test(value)) {
+    throw badRequest("day must use YYYY-MM-DD");
+  }
+
+  const date = new Date(`${value}T00:00:00.000Z`);
+
+  if (Number.isNaN(date.getTime()) || date.toISOString().slice(0, 10) !== value) {
+    throw badRequest("day is invalid");
+  }
+
+  const next = new Date(date);
+  next.setUTCDate(next.getUTCDate() + 1);
+
+  return {
+    label: value,
+    start: value,
+    startIso: date.toISOString(),
+    endIso: next.toISOString()
+  };
+}
+
+export function parsePositiveInteger(value: unknown, field: string) {
+  const number = Number(value);
+
+  if (!Number.isInteger(number) || number < 0) {
+    throw badRequest(`${field} must be a positive integer`);
+  }
+
+  return number;
+}
+
+export function parseWorkType(value: unknown) {
+  if (value !== "support" && value !== "consulting") {
+    throw badRequest("workType must be support or consulting");
+  }
+
+  return value;
+}
+
+export function parseBillingStatus(value: unknown) {
+  if (value === null) {
+    return null;
+  }
+
+  if (value !== "billed" && value !== "non_billable") {
+    throw badRequest("billingStatus must be billed, non_billable or null");
+  }
+
+  return value;
+}
+
+export function parseIsoDate(value: unknown, field: string) {
+  const raw = requireString(value, field);
+  const date = new Date(raw);
+
+  if (Number.isNaN(date.getTime())) {
+    throw badRequest(`${field} must be an ISO date`);
+  }
+
+  return date;
+}
+
+export function badRequest(message: string) {
+  const error = new Error(message) as Error & { status?: number };
+  error.status = 400;
+  return error;
+}

backend/tsconfig.json

@@ -0,0 +1,16 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
+    "strict": true,
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "skipLibCheck": true,
+    "outDir": "dist",
+    "rootDir": "src"
+  },
+  "include": [
+    "src"
+  ]
+}

compose.postgres.yml

@@ -0,0 +1,44 @@
+services:
+  postgres:
+    image: postgres:17-alpine
+    container_name: tickettracker-postgres
+    restart: unless-stopped
+    environment:
+      POSTGRES_DB: ${POSTGRES_DB:-tickettracker}
+      POSTGRES_USER: ${POSTGRES_USER:-tickettracker}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:?POSTGRES_PASSWORD muss gesetzt sein}
+    volumes:
+      - tickettracker_postgres_data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U \"$${POSTGRES_USER}\" -d \"$${POSTGRES_DB}\""]
+      interval: 10s
+      timeout: 5s
+      retries: 10
+
+  tickettracker:
+    image: ${TICKETTRACKER_IMAGE:-git.d-razz.de/michael/tickettracker:latest}
+    build:
+      context: .
+    container_name: tickettracker
+    restart: unless-stopped
+    depends_on:
+      postgres:
+        condition: service_healthy
+    environment:
+      DATABASE_URL: postgresql://${POSTGRES_USER:-tickettracker}:${POSTGRES_PASSWORD}@postgres:5432/${POSTGRES_DB:-tickettracker}
+      PORT: 3000
+      BACKEND_PORT: 3001
+      API_PROXY_TARGET: http://127.0.0.1:3001
+      SERVE_FRONTEND: "false"
+      NEXT_TELEMETRY_DISABLED: "1"
+      ADMIN_USERNAME: ${ADMIN_USERNAME:-admin}
+      ADMIN_PASSWORD: ${ADMIN_PASSWORD:-}
+      ADMIN_DISPLAY_NAME: ${ADMIN_DISPLAY_NAME:-Admin}
+      SESSION_MAX_AGE_MS: ${SESSION_MAX_AGE_MS:-1209600000}
+      COOKIE_SECURE: ${COOKIE_SECURE:-false}
+      DB_POOL_SIZE: ${DB_POOL_SIZE:-10}
+    ports:
+      - "${APP_PORT:-3910}:3000"
+
+volumes:
+  tickettracker_postgres_data:

compose.yml

@@ -0,0 +1,22 @@
+services:
+  tickettracker:
+    image: ${TICKETTRACKER_IMAGE:-git.d-razz.de/michael/tickettracker:latest}
+    build:
+      context: .
+    container_name: tickettracker
+    restart: unless-stopped
+    environment:
+      DATABASE_URL: ${DATABASE_URL}
+      PORT: 3000
+      BACKEND_PORT: 3001
+      API_PROXY_TARGET: http://127.0.0.1:3001
+      SERVE_FRONTEND: "false"
+      NEXT_TELEMETRY_DISABLED: "1"
+      ADMIN_USERNAME: ${ADMIN_USERNAME:-admin}
+      ADMIN_PASSWORD: ${ADMIN_PASSWORD:-}
+      ADMIN_DISPLAY_NAME: ${ADMIN_DISPLAY_NAME:-Admin}
+      SESSION_MAX_AGE_MS: ${SESSION_MAX_AGE_MS:-1209600000}
+      COOKIE_SECURE: ${COOKIE_SECURE:-false}
+      DB_POOL_SIZE: ${DB_POOL_SIZE:-10}
+    ports:
+      - "${APP_PORT:-3910}:3000"

docs/docker-release.md

@@ -0,0 +1,132 @@
+# Docker Release
+
+TicketTracker kann mit einer externen PostgreSQL-17-Datenbank oder mit PostgreSQL 17 im gleichen Docker-Stack laufen.
+
+## Variante A: Externe PostgreSQL-Datenbank
+
+1. Beispiel-Env kopieren:
+
+```bash
+cp .env.docker-external.example .env.docker-external
+```
+
+2. `.env.docker-external` anpassen:
+
+```bash
+DATABASE_URL=postgresql://tickettracker:PASSWORT@10.10.10.23:5432/tickettracker
+ADMIN_PASSWORD=ein-sicheres-passwort
+TICKETTRACKER_IMAGE=git.d-razz.de/michael/tickettracker:latest
+APP_PORT=3910
+```
+
+3. Stack starten:
+
+```bash
+docker compose --env-file .env.docker-external -f compose.yml up -d
+```
+
+## Variante B: PostgreSQL 17 im Stack
+
+1. Beispiel-Env kopieren:
+
+```bash
+cp .env.docker-postgres.example .env.docker-postgres
+```
+
+2. `.env.docker-postgres` anpassen:
+
+```bash
+POSTGRES_PASSWORD=ein-sicheres-db-passwort
+ADMIN_PASSWORD=ein-sicheres-admin-passwort
+TICKETTRACKER_IMAGE=git.d-razz.de/michael/tickettracker:latest
+APP_PORT=3910
+```
+
+3. Stack starten:
+
+```bash
+docker compose --env-file .env.docker-postgres -f compose.postgres.yml up -d
+```
+
+Die Datenbankdaten liegen im Docker-Volume `tickettracker_postgres_data`.
+
+## Image bauen und in Gitea pushen
+
+Einmal am Docker/Gitea-Registry anmelden:
+
+```bash
+docker login git.d-razz.de
+```
+
+Dann Image bauen und pushen:
+
+```bash
+chmod +x scripts/build-and-push-gitea.sh
+./scripts/build-and-push-gitea.sh
+```
+
+Standard-Image:
+
+```text
+git.d-razz.de/michael/tickettracker:latest
+```
+
+## Gitea Repository erstellen
+
+Da aktuell noch kein Repository auf `git.d-razz.de` existiert:
+
+1. In Gitea als `michael` anmelden.
+2. Oben rechts `+` -> `Neues Repository`.
+3. Repository-Name: `tickettracker`.
+4. Repository leer erstellen, also ohne README, `.gitignore` oder Lizenz.
+5. SSH-Key in Gitea hinterlegen, falls noch nicht vorhanden.
+
+Danach lokal:
+
+```bash
+chmod +x scripts/init-gitea-repo.sh
+./scripts/init-gitea-repo.sh
+git branch -M main
+git push -u origin main
+```
+
+Falls du HTTPS statt SSH verwenden willst:
+
+```bash
+REMOTE_URL=https://git.d-razz.de/michael/tickettracker.git ./scripts/init-gitea-repo.sh
+git branch -M main
+git push -u origin main
+```
+
+## Docker-Server / Portainer Stack
+
+Wenn der Docker-Server direkt aus Git deployen soll:
+
+1. In Portainer oder Docker-Management `Stack aus Git` wählen.
+2. Repository URL eintragen:
+
+```text
+git@git.d-razz.de:michael/tickettracker.git
+```
+
+oder per HTTPS:
+
+```text
+https://git.d-razz.de/michael/tickettracker.git
+```
+
+3. Compose-Datei wählen:
+
+```text
+compose.yml
+```
+
+für externe DB, oder:
+
+```text
+compose.postgres.yml
+```
+
+für PostgreSQL 17 im Stack.
+
+4. Environment-Variablen aus `.env.docker-external.example` oder `.env.docker-postgres.example` im Stack hinterlegen.

docs/user-guide.md

@@ -0,0 +1,271 @@
+# TicketTracker Benutzeranleitung
+
+Diese Anleitung beschreibt die Nutzung von TicketTracker im Arbeitsalltag: Zeiten erfassen, Sessions bewerten, CRM-Zeiten eintragen, fixe Abrechnungen verwalten und Monatsauswertungen abschliessen.
+
+## Grundprinzip
+
+TicketTracker ersetzt nicht das Ticketsystem oder CRM. Die App dient dazu, Arbeitszeiten sauber zu messen, auszuwerten und fuer die spaetere Abrechnung vorzubereiten.
+
+Es gibt drei Zeitebenen:
+
+- Session-Zeit: Die gemessene oder manuell erfasste Arbeitszeit einer einzelnen Taetigkeit.
+- Tages-CRM-Zeit: Die Zeit, die fuer ein Ticket an einem konkreten Tag wirklich im CRM eingetragen wurde.
+- Monatsabschluss: Ein Ticket wird fuer einen Monat geschlossen, wenn alle Sessions dieses Tickets im Monat bewertet sind.
+
+## Anmeldung
+
+1. App im Browser oeffnen.
+2. Mit Benutzername und Passwort anmelden.
+3. Nach der Anmeldung ist die Seitenleiste sichtbar.
+
+Normale Benutzer sehen ihre eigenen Zeiten, Auswertungen, fixen Abrechnungen und ihr Profil. Administratoren sehen zusaetzlich den Adminbereich.
+
+## Timer
+
+Die Seite `Timer` ist fuer laufende Arbeit an Tickets gedacht.
+
+1. Ticketnummer im Format `Ticket#XXXXXX` eingeben.
+2. `Session beginnen` klicken.
+3. Der Timer startet.
+4. Bei Bedarf kann der Timer pausiert, fortgesetzt, beendet oder zurueckgesetzt werden.
+
+Es koennen mehrere Timer vorbereitet sein, aber immer nur ein Timer laeuft aktiv. Wird ein anderer Timer gestartet oder fortgesetzt, werden alle anderen laufenden Timer automatisch pausiert.
+
+Beim Klick auf `Beenden` stoppt der Timer sofort. Danach wird die Session fertig gespeichert:
+
+- Existiert das Ticket bereits, werden Organisation und Art vom Ticket uebernommen.
+- Dann muss nur noch die Taetigkeit eingetragen werden.
+- Existiert das Ticket noch nicht, muessen Organisation, Taetigkeit und Art ausgefuellt werden.
+
+Die gemessene Zeit wird auf Minuten gerundet. Pausen werden von der Gesamtdauer abgezogen.
+
+## Session Nachtragen
+
+Sessions koennen auch manuell nachgetragen werden, zum Beispiel wenn ein Timer vergessen wurde.
+
+Normale Benutzer koennen eigene Sessions nachtragen. Administratoren koennen Sessions fuer andere Benutzer nachtragen.
+
+Beim Nachtragen werden angegeben:
+
+- Ticketnummer
+- Organisation
+- Art: Support oder Consulting
+- Datum
+- Von- und Bis-Uhrzeit
+- Taetigkeit
+
+Das Taetigkeitsfeld ist mehrzeilig. Zeilenumbrueche bleiben in der Auswertung erhalten.
+
+## Ticketdaten Bearbeiten
+
+In der Ticketdetailansicht koennen Ticketdaten nachtraeglich korrigiert werden:
+
+- Ticketnummer
+- Organisation
+- Art
+
+Aenderungen an Organisation und Art werden auf vorhandene manuelle Sessions des Tickets uebernommen. Bei wiederkehrend erzeugten Sessions bleibt die Art aus der Regel erhalten und kann nur ueber die fixe Abrechnung geaendert werden.
+
+## Organisationen
+
+Organisationen werden aus Zammad synchronisiert. Danach koennen Organisationen in TicketTracker nur noch aus der Liste ausgewaehlt werden, nicht mehr frei als Text eingetragen werden.
+
+Bereits vorhandene alte Freitexte muessen bei Bedarf manuell korrigiert werden, indem das Ticket oder die Session bearbeitet und eine Organisation aus der Liste ausgewaehlt wird.
+
+## Auswertung
+
+Die Seite `Auswertung` hat zwei Ansichten:
+
+- Monat
+- Tag
+
+Mit den Pfeilen neben dem Datumsfeld kann ein Monat oder Tag vor- und zurueckgeschaltet werden. Die Daten aktualisieren sich automatisch.
+
+Die oberen Karten zeigen:
+
+- Tickets: Anzahl der Tickets im Zeitraum
+- Sessions: Anzahl der Sessions im Zeitraum
+- Zeit: Summe der erfassten Session-Zeit, plus CRM-Zeit
+- Offen: Anzahl unbewerteter Sessions
+
+Der Graph `Gesamtaufwand` zeigt den Aufwand im Zeitraum:
+
+- In der Monatsansicht pro Tag
+- In der Tagesansicht pro Stunde
+
+## Tickets Im Zeitraum
+
+Unter `Tickets im Zeitraum` werden alle Tickets angezeigt, die im gewaehlten Zeitraum Sessions haben.
+
+Pro Ticket sind sichtbar:
+
+- Ticketnummer
+- Organisation
+- Art
+- Anzahl Sessions
+- Zeit
+- Anzahl abgerechneter Sessions
+- Anzahl nicht abrechenbarer Sessions
+- Status
+
+Neben der Ticketnummer gibt es ein Copy-Icon. Ein Klick kopiert die Ticketnummer in die Zwischenablage.
+
+Der Status bedeutet:
+
+- `offen`: Es gibt noch unbewertete Sessions.
+- `bewertet`: Alle Sessions dieses Tickets im gewaehlten Zeitraum sind bewertet.
+
+## Ticketdetailansicht
+
+Ein Ticket wird aus der Auswertung heraus geoeffnet.
+
+In der Ticketdetailansicht sieht man:
+
+- Ticketnummer mit Copy-Icon
+- Abschlussstatus
+- Ticketdaten
+- Session-Eintraege nach Tagen gruppiert
+- Moeglichkeit, direkt eine Session zu diesem Ticket nachzutragen
+
+Die Sessions sind pro Tag gruppiert. In jeder Tagesgruppe stehen:
+
+- Tagesdatum
+- `Tag gesamt`: Summe der erfassten Session-Zeit dieses Tages
+- `CRM`: Stunden, die fuer dieses Ticket an diesem Tag wirklich im CRM eingetragen wurden
+
+Das CRM-Feld wird in Stunden eingetragen, zum Beispiel:
+
+- `1`
+- `1,5`
+- `2.25`
+
+Ein leeres CRM-Feld entfernt den gespeicherten CRM-Wert fuer diesen Ticket-Tag. Der Wert ist derselbe in Monats- und Tagesansicht.
+
+## Sessions Bewerten
+
+Jede Session kann bewertet werden als:
+
+- Abgerechnet
+- Nicht abrechenbar
+
+Ein erneuter Klick auf den bereits gewaehlten Zustand nimmt die Bewertung zurueck. Dadurch wird die Session wieder offen.
+
+Es gibt keinen Ticketabschluss. Tickets dienen nur als Gruppierung fuer Sessions. Abgeschlossen wird ausschliesslich der Monat.
+
+Wenn der Monat bereits abgeschlossen ist, muss er zuerst wieder geoeffnet werden, bevor Bewertungen geaendert werden.
+
+## Sessions Bearbeiten
+
+Eine Session kann ueber das Stift-Icon bearbeitet werden.
+
+Bearbeitbar sind:
+
+- Datum
+- Von-Uhrzeit
+- Bis-Uhrzeit
+- Organisation
+- Taetigkeit
+- Art, sofern es keine wiederkehrende Session ist
+
+Bei wiederkehrenden Sessions ist die Art gesperrt. Sie kommt aus der Regel der fixen Abrechnung.
+
+## Sessions Loeschen
+
+Eine Session kann ueber das Papierkorb-Icon geloescht werden.
+
+Wird die letzte Session eines Tickets geloescht, wird das Ticket entfernt. Die Ansicht springt danach zurueck zur Auswertung.
+
+Bei wiederkehrenden Sessions wird das Loeschen als Ausnahme gespeichert. Dadurch wird die Session fuer diesen Tag nicht automatisch wieder neu erzeugt.
+
+## Zeitraum Abschliessen
+
+Ein Monat kann abgeschlossen werden, wenn:
+
+- Alle Sessions im Monat bewertet sind.
+
+Einen separaten Tagesabschluss gibt es nicht. Die Tagesansicht ist nur eine gefilterte Kontrolle einzelner Tage. Bewertungen und CRM-Tageswerte wirken in Monats- und Tagesansicht auf dieselben Daten, abgeschlossen wird aber ausschliesslich der Monat.
+
+## Fixe Abrechnungen
+
+Fixe Abrechnungen werden von jedem Benutzer selbst verwaltet.
+
+Sie dienen fuer wiederkehrende Leistungen, zum Beispiel:
+
+- Jeden Donnerstag 4 Stunden
+- Jeden Dienstag, Mittwoch und Freitag unterschiedliche Zeiten
+- Alle 2 Wochen an einem bestimmten Wochentag
+
+Eine fixe Abrechnung enthaelt:
+
+- Optional eine Ticketnummer
+- Organisation
+- Art
+- Taetigkeit
+- Gueltig von
+- Optional gueltig bis
+- Muster
+- Slots mit Wochentag, Startzeit und Dauer
+
+Wenn keine Ticketnummer hinterlegt ist, wird automatisch `Fix#ID` verwendet.
+
+Bayerische Feiertage werden bei der automatischen Erzeugung beruecksichtigt. Fuer Feiertage werden keine Sessions erzeugt.
+
+Fixe Abrechnungen koennen bearbeitet werden. Wenn Gueltigkeiten oder Slots geaendert werden, werden nicht mehr passende erzeugte Sessions entfernt oder angepasst.
+
+Fix erzeugte einzelne Sessions koennen geloescht werden, zum Beispiel wegen Urlaub oder Krankheit. Diese Loeschung wird als Ausnahme gespeichert, damit die Session nicht beim naechsten Aufruf wieder automatisch erscheint.
+
+## Profil
+
+Unter `Profil` kann jeder Benutzer seine eigenen Daten pflegen:
+
+- Benutzername
+- Voller Name
+- Passwort
+
+Passwortaenderungen erfordern das aktuelle Passwort.
+
+## Adminbereich
+
+Administratoren koennen:
+
+- Benutzer anlegen
+- Benutzer bearbeiten
+- Passwoerter fuer Benutzer setzen
+- Sessions aller Benutzer sehen
+- Sessions anderen Benutzern zuweisen
+- Sessions fuer Benutzer nachtragen
+- Zammad-Organisationen synchronisieren
+
+Bei der Auswertung normaler Benutzer werden nur die Sessions des angemeldeten Benutzers beruecksichtigt. Ticketdaten koennen trotzdem von Sessions anderer Benutzer uebernommen werden, wenn dasselbe Ticket schon existiert.
+
+## Zammad Sync
+
+Der Zammad-Sync ist nur fuer Administratoren sichtbar.
+
+Beim Sync werden Organisationen aus Zammad in die lokale TicketTracker-Datenbank geschrieben.
+
+Gespeichert werden:
+
+- interne ID
+- Zammad-ID
+- Name
+- Zeitstempel
+
+Neue Organisationen werden hinzugefuegt, geaenderte Namen aktualisiert und nicht mehr vorhandene Organisationen entfernt beziehungsweise von bestehenden Tickets geloest.
+
+## Typischer Monatsablauf
+
+1. Im Alltag Sessions per Timer oder Nachtragen erfassen.
+2. Am Monatsende `Auswertung` oeffnen.
+3. Monat auswaehlen.
+4. Offene Sessions pruefen.
+5. Pro Ticket jede Session als `Abgerechnet` oder `Nicht abrechenbar` markieren.
+6. Pro Tag und Ticket die wirklich ins CRM eingetragene Zeit im Feld `CRM` pflegen.
+7. Wenn keine Sessions im Monat mehr offen sind, Monat abschliessen.
+
+## Hinweise
+
+- Ticketnummern koennen ueber das Copy-Icon schnell in die Zwischenablage kopiert werden.
+- Die App aktualisiert Auswertungen automatisch beim Wechsel von Monat oder Tag.
+- Eine zurueckgenommene Bewertung macht eine Session wieder offen und kann Abschluesse wieder oeffnen.
+- CRM-Zeiten sind Tageswerte pro Ticket und Benutzer. Sie sind nicht an einzelne Sessions gebunden.

frontend/components.json

@@ -0,0 +1,25 @@
+{
+  "$schema": "https://ui.shadcn.com/schema.json",
+  "style": "radix-nova",
+  "rsc": true,
+  "tsx": true,
+  "tailwind": {
+    "config": "",
+    "css": "src/app/globals.css",
+    "baseColor": "neutral",
+    "cssVariables": true,
+    "prefix": ""
+  },
+  "iconLibrary": "lucide",
+  "rtl": false,
+  "aliases": {
+    "components": "@/components",
+    "utils": "@/lib/utils",
+    "ui": "@/components/ui",
+    "lib": "@/lib",
+    "hooks": "@/hooks"
+  },
+  "menuColor": "default",
+  "menuAccent": "subtle",
+  "registries": {}
+}

frontend/next-env.d.ts

@@ -0,0 +1,6 @@
+/// <reference types="next" />
+/// <reference types="next/image-types/global" />
+import "./.next/types/routes.d.ts";
+
+// NOTE: This file should not be edited
+// see https://nextjs.org/docs/app/api-reference/config/typescript for more information.

frontend/next.config.mjs

@@ -0,0 +1,25 @@
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+const workspaceRoot = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");
+
+/** @type {import('next').NextConfig} */
+const nextConfig = {
+  reactCompiler: true,
+  turbopack: {
+    root: workspaceRoot,
+  },
+  compiler: {
+    removeConsole: process.env.NODE_ENV === "production",
+  },
+  async rewrites() {
+    return [
+      {
+        source: "/api/:path*",
+        destination: `${process.env.API_PROXY_TARGET ?? "http://127.0.0.1:3001"}/api/:path*`,
+      },
+    ];
+  },
+};
+
+export default nextConfig;

frontend/package.json

@@ -0,0 +1,47 @@
+{
+  "name": "@tickettracker/frontend",
+  "version": "1.0.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "dev": "NEXT_TELEMETRY_DISABLED=1 next dev -H 0.0.0.0",
+    "build": "NEXT_TELEMETRY_DISABLED=1 next build",
+    "start": "NEXT_TELEMETRY_DISABLED=1 next start -H 0.0.0.0",
+    "typecheck": "tsc --noEmit"
+  },
+  "dependencies": {
+    "@base-ui/react": "^1.6.0",
+    "@shadcn/react": "^0.1.0",
+    "class-variance-authority": "^0.7.1",
+    "clsx": "^2.1.1",
+    "cmdk": "^1.1.1",
+    "embla-carousel-react": "^8.6.0",
+    "geist": "^1.7.2",
+    "input-otp": "^1.4.2",
+    "lucide-react": "^1.28.0",
+    "next": "^16.2.12",
+    "next-themes": "^0.4.6",
+    "postcss": "^8.5.25",
+    "radix-ui": "^1.6.7",
+    "react": "^19.2.8",
+    "react-day-picker": "^10.0.1",
+    "react-dom": "^19.2.8",
+    "react-resizable-panels": "^4.12.2",
+    "recharts": "^3.8.0",
+    "shadcn": "^4.16.1",
+    "sonner": "^2.0.7",
+    "tailwind-merge": "^3.6.0",
+    "tailwindcss": "^4.1.5",
+    "tw-animate-css": "^1.4.0",
+    "vaul": "^1.1.2",
+    "zustand": "^5.0.14"
+  },
+  "devDependencies": {
+    "@tailwindcss/postcss": "^4.3.3",
+    "@types/node": "^22.20.1",
+    "@types/react": "^19.2.18",
+    "@types/react-dom": "^19.2.4",
+    "babel-plugin-react-compiler": "^1.0.0",
+    "typescript": "^5.9.3"
+  }
+}

frontend/postcss.config.mjs

@@ -0,0 +1,8 @@
+/** @type {import('postcss-load-config').Config} */
+const config = {
+  plugins: {
+    "@tailwindcss/postcss": {},
+  },
+};
+
+export default config;

frontend/public/.gitkeep

@@ -0,0 +1 @@
+

frontend/src/App.tsx

@@ -0,0 +1,708 @@
+import {
+  BarChart3,
+  CheckCircle2,
+  Command,
+  LayoutGrid,
+  LogOut,
+  Moon,
+  Pause,
+  Play,
+  Plus,
+  Repeat,
+  Search,
+  Shield,
+  Sun,
+  Timer,
+  UserCog,
+  UserCircle,
+} from "lucide-react";
+import { FormEvent, MouseEvent, useEffect, useMemo, useState } from "react";
+import { useShallow } from "zustand/react/shallow";
+import { toast } from "sonner";
+
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuLabel,
+  DropdownMenuSeparator,
+  DropdownMenuTrigger,
+} from "@/components/ui/dropdown-menu";
+import { Separator } from "@/components/ui/separator";
+import {
+  Sidebar,
+  SidebarContent,
+  SidebarFooter,
+  SidebarGroup,
+  SidebarGroupContent,
+  SidebarGroupLabel,
+  SidebarHeader,
+  SidebarInset,
+  SidebarMenu,
+  SidebarMenuButton,
+  SidebarMenuItem,
+  SidebarProvider,
+  SidebarTrigger,
+} from "@/components/ui/sidebar";
+import { usePreferencesStore } from "@/stores/preferences/preferences-provider";
+
+import { cn } from "./lib/utils";
+import { ApiError, getCurrentUser, logout, lookupTicket } from "./api";
+import { formatTimer } from "./format";
+import { activeElapsedMs, pauseEntry, readStoredTimers, resumeEntry, storageKeyForUser, ticketPattern, type TimerEntry } from "./timers";
+import { AdminUsersPage } from "./views/AdminUsersPage";
+import { AnalysisPage } from "./views/AnalysisPage";
+import { LoginPage } from "./views/LoginPage";
+import { ProfilePage } from "./views/ProfilePage";
+import { RecurringBillingsPage } from "./views/RecurringBillingsPage";
+import { TicketDetailPage } from "./views/TicketDetailPage";
+import { TimerPage } from "./views/TimerPage";
+import type { AuthUser, PeriodType } from "./types";
+import type { Dispatch, SetStateAction } from "react";
+
+function routeFromPath(pathname: string) {
+  const periodTicketMatch = pathname.match(/^\/analysis\/(month|day)\/([^/]+)\/tickets\/(\d+)$/);
+
+  if (periodTicketMatch) {
+    return {
+      page: "ticket" as const,
+      periodType: periodTicketMatch[1] as PeriodType,
+      period: periodTicketMatch[2],
+      ticketId: periodTicketMatch[3],
+    };
+  }
+
+  const legacyTicketMatch = pathname.match(/^\/analysis\/(\d{4}-\d{2})\/tickets\/(\d+)$/);
+
+  if (legacyTicketMatch) {
+    return {
+      page: "ticket" as const,
+      periodType: "month" as const,
+      period: legacyTicketMatch[1],
+      ticketId: legacyTicketMatch[2],
+    };
+  }
+
+  if (pathname.startsWith("/analysis")) {
+    return { page: "analysis" as const };
+  }
+
+  if (pathname.startsWith("/recurring")) {
+    return { page: "recurring" as const };
+  }
+
+  if (pathname.startsWith("/admin/users")) {
+    return { page: "admin-users" as const };
+  }
+
+  if (pathname.startsWith("/profile")) {
+    return { page: "profile" as const };
+  }
+
+  return { page: "timer" as const };
+}
+
+function useAppRouter() {
+  const [path, setPath] = useState("/timer");
+
+  useEffect(() => {
+    const update = () => setPath(window.location.pathname);
+    update();
+    window.addEventListener("popstate", update);
+    return () => window.removeEventListener("popstate", update);
+  }, []);
+
+  function navigate(to: string) {
+    window.history.pushState({}, "", to);
+    setPath(window.location.pathname);
+  }
+
+  function navHandler(to: string) {
+    return (event: MouseEvent<HTMLAnchorElement>) => {
+      event.preventDefault();
+      navigate(to);
+    };
+  }
+
+  return {
+    path,
+    route: useMemo(() => routeFromPath(path), [path]),
+    navigate,
+    navHandler,
+  };
+}
+
+function ThemeSwitcher() {
+  const { themeMode, setPreference } = usePreferencesStore(
+    useShallow((state) => ({
+      themeMode: state.values.theme_mode,
+      setPreference: state.setPreference,
+    })),
+  );
+
+  function cycleTheme() {
+    setPreference("theme_mode", themeMode === "dark" ? "light" : "dark");
+  }
+
+  return (
+    <Button variant="default" size="icon" aria-label="Farbschema wechseln" onClick={cycleTheme}>
+      <Sun className="hidden dark:block" />
+      <Moon className="block dark:hidden" />
+    </Button>
+  );
+}
+
+type QuickTimerStarterProps = {
+  className?: string;
+  inputId: string;
+  onStartTimer: (ticketNumber: string) => Promise<boolean>;
+};
+
+function QuickTimerStarter({ className, inputId, onStartTimer }: QuickTimerStarterProps) {
+  const [ticketNumber, setTicketNumber] = useState("");
+  const trimmedTicketNumber = ticketNumber.trim();
+  const hasInvalidTicket = trimmedTicketNumber.length > 0 && !ticketPattern.test(trimmedTicketNumber);
+
+  async function submit(event: FormEvent) {
+    event.preventDefault();
+
+    if (await onStartTimer(trimmedTicketNumber)) {
+      setTicketNumber("");
+    }
+  }
+
+  return (
+    <form className={cn("flex min-w-0 items-center gap-2", className)} onSubmit={submit}>
+      <label className="sr-only" htmlFor={inputId}>
+        Ticketnummer fuer neuen Timer
+      </label>
+      <Input
+        id={inputId}
+        className={cn("h-8 min-w-0 bg-background", hasInvalidTicket && "border-destructive focus-visible:border-destructive")}
+        placeholder="Ticket#123456"
+        value={ticketNumber}
+        onChange={(event) => setTicketNumber(event.currentTarget.value)}
+      />
+      <Button type="submit" size="sm" className="h-8 shrink-0">
+        <Plus className="size-3.5" />
+        <span className="hidden sm:inline">Timer starten</span>
+        <span className="sm:hidden">Start</span>
+      </Button>
+    </form>
+  );
+}
+
+type SidebarTimersProps = {
+  timers: TimerEntry[];
+  selectedTimerId: string | null;
+  setSelectedTimerId: Dispatch<SetStateAction<string | null>>;
+  setTimers: Dispatch<SetStateAction<TimerEntry[]>>;
+  tick: number;
+  onOpenTimer: () => void;
+};
+
+function SidebarTimers({ timers, selectedTimerId, setSelectedTimerId, setTimers, tick, onOpenTimer }: SidebarTimersProps) {
+  const sortedTimers = useMemo(
+    () =>
+      [...timers].sort((first, second) => {
+        if (first.phase === second.phase) {
+          return first.ticketNumber.localeCompare(second.ticketNumber);
+        }
+
+        return first.phase === "running" ? -1 : 1;
+      }),
+    [timers],
+  );
+  const runningTimer = timers.find((timer) => timer.phase === "running") ?? null;
+
+  function toggleTimer(timerId: string) {
+    const timer = timers.find((entry) => entry.id === timerId);
+
+    if (!timer) {
+      return;
+    }
+
+    const now = Date.now();
+    setSelectedTimerId(timerId);
+    setTimers((current) =>
+      current.map((entry) => {
+        if (entry.id !== timerId) {
+          return pauseEntry(entry, now);
+        }
+
+        return timer.phase === "running" ? pauseEntry(entry, now) : resumeEntry(entry, now);
+      }),
+    );
+  }
+
+  return (
+    <SidebarGroup className="pt-0 group-data-[collapsible=icon]:hidden">
+      <SidebarGroupLabel className="h-6 px-2 text-xs">Timer</SidebarGroupLabel>
+      <SidebarGroupContent>
+        <div className="mx-2 rounded-md border bg-card/70 p-2 shadow-xs">
+          <div className="mb-1 flex items-center justify-between gap-2">
+            <span className="truncate text-xs font-medium text-muted-foreground">
+              {runningTimer ? "Aktuell aktiv" : timers.length > 0 ? "Bereit" : "Kein Timer"}
+            </span>
+            {runningTimer ? <span className="size-2 rounded-full bg-emerald-500" aria-hidden="true" /> : null}
+          </div>
+
+          {sortedTimers.length === 0 ? (
+            <p className="px-1 py-1 text-xs text-muted-foreground">Noch keine Timer gestartet.</p>
+          ) : (
+            <div className="max-h-52 space-y-1 overflow-y-auto pr-1">
+              {sortedTimers.map((timer) => {
+                const elapsed = Math.floor(activeElapsedMs(timer, tick) / 1000);
+                const isSelected = selectedTimerId === timer.id;
+                const isRunning = timer.phase === "running";
+
+                return (
+                  <div
+                    key={timer.id}
+                    className={cn(
+                      "flex items-center gap-1.5 rounded-md border px-2 py-1.5",
+                      isSelected ? "border-primary/55 bg-accent/35" : "border-transparent bg-background/60",
+                    )}
+                  >
+                    <button
+                      type="button"
+                      className="min-w-0 flex-1 text-left"
+                      onClick={() => {
+                        setSelectedTimerId(timer.id);
+                        onOpenTimer();
+                      }}
+                    >
+                      <span className="flex min-w-0 items-center gap-1.5">
+                        <span className={cn("size-1.5 rounded-full", isRunning ? "bg-emerald-500" : "bg-muted-foreground/50")} />
+                        <span className="truncate text-xs font-medium">{timer.ticketNumber}</span>
+                      </span>
+                      {timer.organizationName ? (
+                        <span className="block truncate text-[11px] leading-4 text-muted-foreground">
+                          {timer.organizationName}
+                        </span>
+                      ) : null}
+                      <span className="block font-mono text-[11px] font-semibold leading-4 tracking-normal text-muted-foreground">
+                        {formatTimer(elapsed)}
+                      </span>
+                    </button>
+                    <Button
+                      type="button"
+                      size="icon"
+                      variant={isRunning ? "secondary" : "ghost"}
+                      className="size-7 shrink-0"
+                      onClick={() => toggleTimer(timer.id)}
+                      aria-label={isRunning ? "Timer pausieren" : "Timer aktivieren"}
+                    >
+                      {isRunning ? <Pause className="size-3.5" /> : <Play className="size-3.5" />}
+                    </Button>
+                  </div>
+                );
+              })}
+            </div>
+          )}
+        </div>
+      </SidebarGroupContent>
+    </SidebarGroup>
+  );
+}
+
+export function App() {
+  const { path, route, navHandler, navigate } = useAppRouter();
+  const [currentUser, setCurrentUser] = useState<AuthUser | null>(null);
+  const [authLoading, setAuthLoading] = useState(true);
+  const [timers, setTimers] = useState<TimerEntry[]>([]);
+  const [timersLoaded, setTimersLoaded] = useState(false);
+  const [timerOwnerId, setTimerOwnerId] = useState<string | null>(null);
+  const [selectedTimerId, setSelectedTimerId] = useState<string | null>(null);
+  const [tick, setTick] = useState(Date.now());
+
+  useEffect(() => {
+    async function loadUser() {
+      try {
+        const result = await getCurrentUser();
+        setCurrentUser(result.user);
+      } catch (error) {
+        if (!(error instanceof ApiError && error.status === 401)) {
+          console.error(error);
+        }
+        setCurrentUser(null);
+      } finally {
+        setAuthLoading(false);
+      }
+    }
+
+    void loadUser();
+  }, []);
+
+  useEffect(() => {
+    if (!currentUser) {
+      setTimers([]);
+      setSelectedTimerId(null);
+      setTimerOwnerId(null);
+      setTimersLoaded(false);
+      return;
+    }
+
+    setTimers(readStoredTimers(currentUser.id));
+    setTimerOwnerId(currentUser.id);
+    setTimersLoaded(true);
+  }, [currentUser]);
+
+  useEffect(() => {
+    if (!currentUser || !timersLoaded || timerOwnerId !== currentUser.id) {
+      return;
+    }
+
+    localStorage.setItem(storageKeyForUser(currentUser.id), JSON.stringify(timers));
+
+    if (timers.length === 0) {
+      setSelectedTimerId(null);
+      return;
+    }
+
+    if (!selectedTimerId || !timers.some((timer) => timer.id === selectedTimerId)) {
+      setSelectedTimerId(timers[0].id);
+    }
+  }, [currentUser, timers, selectedTimerId, timersLoaded, timerOwnerId]);
+
+  useEffect(() => {
+    if (!currentUser || !timersLoaded || timerOwnerId !== currentUser.id) {
+      return;
+    }
+
+    const timersToHydrate = timers.filter((timer) => !timer.ticketLookupDone);
+
+    if (timersToHydrate.length === 0) {
+      return;
+    }
+
+    let cancelled = false;
+
+    async function hydrateTimers() {
+      const results = await Promise.all(
+        timersToHydrate.map(async (timer) => {
+          try {
+            const result = await lookupTicket(timer.ticketNumber);
+            return {
+              id: timer.id,
+              organizationName: result.ticket?.organization_name ?? result.ticket?.customer_name ?? null,
+              workType: result.ticket?.work_type ?? null
+            };
+          } catch {
+            return {
+              id: timer.id,
+              organizationName: null,
+              workType: null
+            };
+          }
+        })
+      );
+
+      if (cancelled) {
+        return;
+      }
+
+      setTimers((current) =>
+        current.map((timer) => {
+          const result = results.find((entry) => entry.id === timer.id);
+
+          if (!result) {
+            return timer;
+          }
+
+          return {
+            ...timer,
+            organizationName: result.organizationName,
+            workType: result.workType,
+            ticketLookupDone: true
+          };
+        })
+      );
+    }
+
+    void hydrateTimers();
+
+    return () => {
+      cancelled = true;
+    };
+  }, [currentUser, timers, timersLoaded, timerOwnerId]);
+
+  useEffect(() => {
+    const interval = window.setInterval(() => setTick(Date.now()), 500);
+    return () => window.clearInterval(interval);
+  }, []);
+
+  async function startQuickTimer(rawTicketNumber: string) {
+    const ticketNumber = rawTicketNumber.trim();
+
+    if (!ticketPattern.test(ticketNumber)) {
+      toast.error("Ticketnummer prüfen", {
+        description: "Das Format muss Ticket#XXXXXX sein."
+      });
+      return false;
+    }
+
+    const existingTimer = timers.find((timer) => timer.ticketNumber === ticketNumber);
+    const now = Date.now();
+
+    if (existingTimer) {
+      setTimers((current) =>
+        current.map((timer) => (timer.id === existingTimer.id ? resumeEntry(timer, now) : pauseEntry(timer, now)))
+      );
+      setSelectedTimerId(existingTimer.id);
+      toast.info("Bestehender Timer aktiviert", {
+        description: ticketNumber
+      });
+      return true;
+    }
+
+    const ticketResult = await lookupTicket(ticketNumber).catch(() => ({ ticket: null }));
+
+    const newTimer: TimerEntry = {
+      id: crypto.randomUUID(),
+      ticketNumber,
+      organizationName: ticketResult.ticket?.organization_name ?? ticketResult.ticket?.customer_name ?? null,
+      workType: ticketResult.ticket?.work_type ?? null,
+      ticketLookupDone: true,
+      startedAt: now,
+      pausedTotalMs: 0,
+      pausedAt: null,
+      phase: "running"
+    };
+
+    setTimers((current) => [...current.map((timer) => pauseEntry(timer, now)), newTimer]);
+    setSelectedTimerId(newTimer.id);
+    toast.success("Timer gestartet", {
+      description: ticketNumber
+    });
+    return true;
+  }
+
+  async function handleLogout() {
+    await logout().catch(() => undefined);
+    setCurrentUser(null);
+    navigate("/timer");
+  }
+
+  if (authLoading) {
+    return (
+      <main className="grid min-h-screen place-items-center bg-background p-4 text-sm text-muted-foreground">
+        TicketTracker wird geladen...
+      </main>
+    );
+  }
+
+  if (!currentUser) {
+    return <LoginPage onLogin={setCurrentUser} />;
+  }
+
+  const navItems = [
+    { href: "/timer", label: "Timer", icon: Timer, active: path.startsWith("/timer") || path === "/" },
+    { href: "/analysis", label: "Auswertung", icon: BarChart3, active: path.startsWith("/analysis") },
+    { href: "/recurring", label: "Fixe Abrechnung", icon: Repeat, active: path.startsWith("/recurring") },
+    { href: "/profile", label: "Profil", icon: UserCog, active: path.startsWith("/profile") },
+    ...(currentUser.role === "admin"
+      ? [{ href: "/admin/users", label: "Benutzer", icon: Shield, active: path.startsWith("/admin/users") }]
+      : []),
+  ];
+  const runningTimer = timers.find((timer) => timer.phase === "running") ?? null;
+  const runningElapsedSeconds = runningTimer ? Math.floor(activeElapsedMs(runningTimer, tick) / 1000) : 0;
+
+  return (
+    <SidebarProvider
+      defaultOpen
+      style={
+        {
+          "--sidebar-width": "16rem",
+        } as React.CSSProperties
+      }
+    >
+      <Sidebar variant="sidebar" collapsible="icon">
+        <SidebarHeader>
+          <SidebarMenu>
+            <SidebarMenuItem>
+              <SidebarMenuButton asChild>
+                <a href="/timer" onClick={navHandler("/timer")}>
+                  <Command />
+                  <span className="font-semibold text-base">TicketTracker</span>
+                </a>
+              </SidebarMenuButton>
+            </SidebarMenuItem>
+          </SidebarMenu>
+        </SidebarHeader>
+
+        <SidebarContent>
+          <SidebarGroup>
+            <SidebarGroupContent className="flex flex-col gap-2">
+              <SidebarMenu>
+                <SidebarMenuItem className="flex items-center gap-2">
+                  <SidebarMenuButton
+                    asChild
+                    tooltip="Session starten"
+                    className="min-w-8 bg-primary text-primary-foreground duration-200 ease-linear hover:bg-primary/90 hover:text-primary-foreground active:bg-primary/90 active:text-primary-foreground"
+                  >
+                    <a href="/timer" onClick={navHandler("/timer")}>
+                      <Timer />
+                      <span>Session starten</span>
+                    </a>
+                  </SidebarMenuButton>
+                </SidebarMenuItem>
+              </SidebarMenu>
+            </SidebarGroupContent>
+          </SidebarGroup>
+
+          <SidebarTimers
+            timers={timers}
+            selectedTimerId={selectedTimerId}
+            setSelectedTimerId={setSelectedTimerId}
+            setTimers={setTimers}
+            tick={tick}
+            onOpenTimer={() => navigate("/timer")}
+          />
+
+          <SidebarGroup>
+            <SidebarGroupLabel>Workflows</SidebarGroupLabel>
+            <SidebarGroupContent>
+              <SidebarMenu>
+                {navItems.map((item) => (
+                  <SidebarMenuItem key={item.href}>
+                    <SidebarMenuButton asChild tooltip={item.label} isActive={item.active}>
+                      <a href={item.href} onClick={navHandler(item.href)}>
+                        <item.icon />
+                        <span>{item.label}</span>
+                      </a>
+                    </SidebarMenuButton>
+                  </SidebarMenuItem>
+                ))}
+              </SidebarMenu>
+            </SidebarGroupContent>
+          </SidebarGroup>
+
+        </SidebarContent>
+
+        <SidebarFooter>
+          <div className="mx-2 rounded-lg border bg-card p-3 text-sm shadow-xs group-data-[collapsible=icon]:hidden">
+            <div className="mb-2 flex items-center gap-2 font-medium">
+              <CheckCircle2 className="size-4 text-muted-foreground" />
+              Abschluss
+            </div>
+            <p className="text-muted-foreground">Offene Sessions findest du in Tages- und Monatsansicht.</p>
+          </div>
+          <SidebarMenu>
+            <SidebarMenuItem>
+              <SidebarMenuButton tooltip="Worklog">
+                <UserCircle />
+                <span>Worklog lokal</span>
+              </SidebarMenuButton>
+            </SidebarMenuItem>
+          </SidebarMenu>
+        </SidebarFooter>
+      </Sidebar>
+
+      <SidebarInset
+        className={cn(
+          "[html[data-content-layout=centered]_&>*]:mx-auto",
+          "[html[data-content-layout=centered]_&>*]:w-full",
+          "[html[data-content-layout=centered]_&>*]:max-w-screen-2xl",
+          "[--dashboard-header-height:--spacing(12)]",
+          "min-w-0 overflow-x-clip",
+        )}
+      >
+        <header className="sticky top-0 z-50 flex h-12 shrink-0 items-center gap-2 border-b bg-background/80 backdrop-blur-md">
+          <div className="flex w-full items-center justify-between px-3 sm:px-5 lg:px-6">
+            <div className="flex min-w-0 items-center gap-2">
+              <SidebarTrigger className="-ml-1" />
+              <Separator orientation="vertical" className="mx-1 data-[orientation=vertical]:h-4 data-[orientation=vertical]:self-center" />
+              <div className="hidden h-8 min-w-[160px] items-center gap-2 rounded-md px-2 text-sm text-muted-foreground lg:flex">
+                <Search className="size-4" />
+                <span>{currentUser.display_name}</span>
+              </div>
+              {runningTimer ? (
+                <button
+                  type="button"
+                  className="flex h-8 min-w-0 items-center gap-1.5 rounded-md border bg-card px-2 text-xs shadow-xs"
+                  onClick={() => {
+                    setSelectedTimerId(runningTimer.id);
+                    navigate("/timer");
+                  }}
+                >
+                  <span className="size-1.5 rounded-full bg-emerald-500" aria-hidden="true" />
+                  <span className="hidden max-w-28 truncate font-medium sm:inline">{runningTimer.ticketNumber}</span>
+                  <span className="font-mono font-semibold tracking-normal">{formatTimer(runningElapsedSeconds)}</span>
+                </button>
+              ) : null}
+              <div className="flex items-center gap-2 md:hidden">
+                <LayoutGrid className="size-4" />
+                <span className="truncate text-sm font-semibold">TicketTracker</span>
+              </div>
+            </div>
+            <QuickTimerStarter
+              inputId="quick-ticket-number-desktop"
+              className="mx-3 hidden max-w-md flex-1 md:flex"
+              onStartTimer={startQuickTimer}
+            />
+            <div className="flex items-center gap-2">
+              <ThemeSwitcher />
+              <DropdownMenu>
+                <DropdownMenuTrigger asChild>
+                  <Button variant="ghost" size="icon" className="rounded-full border bg-background">
+                    <UserCircle className="size-5" />
+                  </Button>
+                </DropdownMenuTrigger>
+                <DropdownMenuContent align="end" className="w-48">
+                  <DropdownMenuLabel>
+                    <span className="block truncate">{currentUser.display_name}</span>
+                    <span className="block truncate text-xs font-normal text-muted-foreground">{currentUser.username}</span>
+                  </DropdownMenuLabel>
+                  <DropdownMenuSeparator />
+                  <DropdownMenuItem onClick={() => navigate("/profile")}>
+                    <UserCog className="size-4" />
+                    Profil
+                  </DropdownMenuItem>
+                  <DropdownMenuItem onClick={() => void handleLogout()}>
+                    <LogOut className="size-4" />
+                    Abmelden
+                  </DropdownMenuItem>
+                </DropdownMenuContent>
+              </DropdownMenu>
+            </div>
+          </div>
+        </header>
+        <div className="border-b bg-background/95 px-3 py-2 md:hidden">
+          <QuickTimerStarter inputId="quick-ticket-number-mobile" onStartTimer={startQuickTimer} />
+        </div>
+        <main className="min-h-0 min-w-0 flex-1 overflow-x-hidden p-3 sm:p-4 md:p-5">
+          <div className="mx-auto w-full max-w-[1180px]">
+            {route.page === "timer" ? (
+              <TimerPage
+                timers={timers}
+                setTimers={setTimers}
+                selectedTimerId={selectedTimerId}
+                setSelectedTimerId={setSelectedTimerId}
+                tick={tick}
+              />
+            ) : null}
+            {route.page === "analysis" ? <AnalysisPage onNavigate={navigate} /> : null}
+            {route.page === "recurring" ? <RecurringBillingsPage /> : null}
+            {route.page === "profile" ? <ProfilePage currentUser={currentUser} onUserUpdated={setCurrentUser} /> : null}
+            {route.page === "admin-users" && currentUser.role === "admin" ? <AdminUsersPage currentUser={currentUser} /> : null}
+            {route.page === "admin-users" && currentUser.role !== "admin" ? (
+              <TimerPage
+                timers={timers}
+                setTimers={setTimers}
+                selectedTimerId={selectedTimerId}
+                setSelectedTimerId={setSelectedTimerId}
+                tick={tick}
+              />
+            ) : null}
+            {route.page === "ticket" ? (
+              <TicketDetailPage periodType={route.periodType} period={route.period} ticketId={route.ticketId} onNavigate={navigate} />
+            ) : null}
+          </div>
+        </main>
+      </SidebarInset>
+    </SidebarProvider>
+  );
+}

frontend/src/api.ts

@@ -0,0 +1,357 @@
+import type {
+  AdminSession,
+  AdminUser,
+  AuthUser,
+  BillingStatus,
+  Organization,
+  PeriodOverview,
+  PeriodType,
+  RecurringBilling,
+  TicketMeta,
+  TicketPeriod,
+  UserRole,
+  WorkType
+} from "./types";
+
+type CreateSessionPayload = {
+  ticketNumber: string;
+  organizationId: string;
+  activity: string;
+  workType: WorkType;
+  startedAt: string;
+  endedAt: string;
+  durationSeconds: number;
+};
+
+type DeleteSessionResult = {
+  deleted: {
+    id: string;
+    ticket_id: string;
+    started_at: string;
+    userTicketEmpty: boolean;
+    ticketDeleted: boolean;
+  };
+};
+
+export class ApiError extends Error {
+  constructor(
+    message: string,
+    public status: number
+  ) {
+    super(message);
+    this.name = "ApiError";
+  }
+}
+
+async function request<T>(url: string, options: RequestInit = {}): Promise<T> {
+  const response = await fetch(url, {
+    credentials: "same-origin",
+    headers: {
+      "Content-Type": "application/json",
+      ...options.headers
+    },
+    ...options
+  });
+
+  if (!response.ok) {
+    const body = await response.json().catch(() => ({}));
+    throw new ApiError(body.error ?? "Anfrage fehlgeschlagen", response.status);
+  }
+
+  return response.json() as Promise<T>;
+}
+
+export function login(payload: { username: string; password: string }) {
+  return request<{ user: AuthUser }>("/api/auth/login", {
+    method: "POST",
+    body: JSON.stringify(payload)
+  });
+}
+
+export function logout() {
+  return request<{ ok: boolean }>("/api/auth/logout", {
+    method: "POST"
+  });
+}
+
+export function getCurrentUser() {
+  return request<{ user: AuthUser }>("/api/auth/me");
+}
+
+export function updateCurrentUser(payload: {
+  username: string;
+  displayName: string;
+  currentPassword?: string;
+  newPassword?: string;
+}) {
+  return request<{ user: AuthUser }>("/api/auth/me", {
+    method: "PATCH",
+    body: JSON.stringify(payload)
+  });
+}
+
+export function getAdminUsers() {
+  return request<{ users: AdminUser[] }>("/api/admin/users");
+}
+
+export function createAdminUser(payload: {
+  username: string;
+  displayName: string;
+  password: string;
+  role: UserRole;
+  active: boolean;
+}) {
+  return request<{ user: AdminUser }>("/api/admin/users", {
+    method: "POST",
+    body: JSON.stringify(payload)
+  });
+}
+
+export function updateAdminUser(
+  userId: string,
+  payload: {
+    username: string;
+    displayName: string;
+    password?: string;
+    role: UserRole;
+    active: boolean;
+  }
+) {
+  return request<{ user: AdminUser }>(`/api/admin/users/${userId}`, {
+    method: "PATCH",
+    body: JSON.stringify(payload)
+  });
+}
+
+export function getAdminSessions() {
+  return request<{ sessions: AdminSession[] }>("/api/admin/sessions");
+}
+
+export function getOrganizations(search = "") {
+  const params = new URLSearchParams();
+
+  if (search.trim()) {
+    params.set("search", search.trim());
+  }
+
+  return request<{ organizations: Organization[] }>(`/api/organizations${params.size ? `?${params}` : ""}`);
+}
+
+export function getZammadSettings() {
+  return request<{ settings: { baseUrl: string; hasApiKey: boolean } }>("/api/admin/zammad/settings");
+}
+
+export function saveZammadSettings(payload: { baseUrl: string; apiKey?: string }) {
+  return request<{ settings: { baseUrl: string; hasApiKey: boolean } }>("/api/admin/zammad/settings", {
+    method: "PUT",
+    body: JSON.stringify(payload)
+  });
+}
+
+export function syncZammadOrganizations(payload: { baseUrl?: string; apiKey?: string }) {
+  return request<{ synced: number; skipped: number; removed: number; unlinkedTickets: number; unlinkedSessions: number }>("/api/admin/zammad/organizations/sync", {
+    method: "POST",
+    body: JSON.stringify(payload)
+  });
+}
+
+export function getRecurringBillings() {
+  return request<{ recurringBillings: RecurringBilling[] }>("/api/recurring-billings");
+}
+
+export function createRecurringBilling(payload: {
+  ticketNumber?: string | null;
+  organizationId: string;
+  activity: string;
+  workType: WorkType;
+  recurrenceType: "weekly" | "every_n_weeks";
+  intervalValue: number;
+  validFrom: string;
+  validUntil?: string | null;
+  slots: Array<{
+    weekday: number | null;
+    startTime: string;
+    durationMinutes: number;
+  }>;
+}) {
+  return request<{ recurringBillings: RecurringBilling[] }>("/api/recurring-billings", {
+    method: "POST",
+    body: JSON.stringify(payload)
+  });
+}
+
+export function updateRecurringBilling(
+  billingId: string,
+  payload:
+    | { active: boolean }
+    | {
+        ticketNumber?: string | null;
+        organizationId: string;
+        activity: string;
+        workType: WorkType;
+        recurrenceType: "weekly" | "every_n_weeks";
+        intervalValue: number;
+        validFrom: string;
+        validUntil?: string | null;
+        slots: Array<{
+          id?: string;
+          weekday: number | null;
+          startTime: string;
+          durationMinutes: number;
+        }>;
+      }
+) {
+  return request<{ recurringBillings: RecurringBilling[] }>(`/api/recurring-billings/${billingId}`, {
+    method: "PATCH",
+    body: JSON.stringify(payload)
+  });
+}
+
+export function deleteRecurringBilling(billingId: string) {
+  return request<{ recurringBillings: RecurringBilling[] }>(`/api/recurring-billings/${billingId}`, {
+    method: "DELETE"
+  });
+}
+
+export function createAdminSession(payload: {
+  userId: string;
+  ticketNumber: string;
+  organizationId: string;
+  activity: string;
+  workType: WorkType;
+  startedAt: string;
+  endedAt: string;
+}) {
+  return request<{ session: AdminSession }>("/api/admin/sessions", {
+    method: "POST",
+    body: JSON.stringify(payload)
+  });
+}
+
+export function reassignAdminSession(sessionId: string, userId: string) {
+  return request<{ session: AdminSession }>(`/api/admin/sessions/${sessionId}/owner`, {
+    method: "PATCH",
+    body: JSON.stringify({ userId })
+  });
+}
+
+export function createSession(payload: CreateSessionPayload) {
+  return request("/api/sessions", {
+    method: "POST",
+    body: JSON.stringify(payload)
+  });
+}
+
+export function lookupTicket(ticketNumber: string) {
+  return request<{ ticket: TicketMeta | null }>(`/api/tickets/lookup?ticketNumber=${encodeURIComponent(ticketNumber)}`);
+}
+
+export function updateTicket(
+  ticketId: string,
+  payload: {
+    ticketNumber: string;
+    organizationId: string;
+    workType: WorkType;
+  }
+) {
+  return request<{ ticket: TicketMeta }>(`/api/tickets/${ticketId}`, {
+    method: "PATCH",
+    body: JSON.stringify(payload)
+  });
+}
+
+export function updateSessionDetails(
+  sessionId: string,
+  payload: {
+    organizationId: string;
+    activity: string;
+    workType: WorkType;
+    startedAt: string;
+    endedAt: string;
+  }
+) {
+  return request(`/api/sessions/${sessionId}/details`, {
+    method: "PATCH",
+    body: JSON.stringify(payload)
+  });
+}
+
+export function updateTicketDayBilling(ticketId: string, day: string, billedMinutes: number | null) {
+  return request(`/api/tickets/${ticketId}/day-billings/${day}`, {
+    method: "PATCH",
+    body: JSON.stringify({ billedMinutes })
+  });
+}
+
+export function getMonthOverview(month: string) {
+  return getPeriodOverview("month", month);
+}
+
+export function getTicketMonth(month: string, ticketId: string) {
+  return getTicketPeriod("month", month, ticketId);
+}
+
+function periodPath(type: PeriodType) {
+  return type === "month" ? "months" : "days";
+}
+
+export function getPeriodOverview(type: PeriodType, period: string) {
+  return request<PeriodOverview>(`/api/periods/${periodPath(type)}/${period}/overview`);
+}
+
+export function getTicketPeriod(type: PeriodType, period: string, ticketId: string) {
+  return request<TicketPeriod>(`/api/periods/${periodPath(type)}/${period}/tickets/${ticketId}`);
+}
+
+export function updateSessionBilling(sessionId: string, billingStatus: BillingStatus) {
+  return request(`/api/sessions/${sessionId}/billing`, {
+    method: "PATCH",
+    body: JSON.stringify({ billingStatus })
+  });
+}
+
+export function deleteSession(sessionId: string) {
+  return request<DeleteSessionResult>(`/api/sessions/${sessionId}`, {
+    method: "DELETE"
+  });
+}
+
+export function closeTicketMonth(month: string, ticketId: string) {
+  return closeTicketPeriod("month", month, ticketId);
+}
+
+export function reopenTicketMonth(month: string, ticketId: string) {
+  return reopenTicketPeriod("month", month, ticketId);
+}
+
+export function closeMonth(month: string) {
+  return closePeriod("month", month);
+}
+
+export function reopenMonth(month: string) {
+  return reopenPeriod("month", month);
+}
+
+export function closeTicketPeriod(type: PeriodType, period: string, ticketId: string) {
+  return request(`/api/periods/${periodPath(type)}/${period}/tickets/${ticketId}/close`, {
+    method: "POST"
+  });
+}
+
+export function reopenTicketPeriod(type: PeriodType, period: string, ticketId: string) {
+  return request(`/api/periods/${periodPath(type)}/${period}/tickets/${ticketId}/reopen`, {
+    method: "POST"
+  });
+}
+
+export function closePeriod(type: PeriodType, period: string) {
+  return request(`/api/periods/${periodPath(type)}/${period}/close`, {
+    method: "POST"
+  });
+}
+
+export function reopenPeriod(type: PeriodType, period: string) {
+  return request(`/api/periods/${periodPath(type)}/${period}/reopen`, {
+    method: "POST"
+  });
+}

frontend/src/app/[[...path]]/page.tsx

@@ -0,0 +1,7 @@
+"use client";
+
+import { App } from "@/App";
+
+export default function Page() {
+  return <App />;
+}

frontend/src/app/globals.css

@@ -0,0 +1,303 @@
+@import "tailwindcss";
+@import "tw-animate-css";
+@import "shadcn/tailwind.css";
+
+/* Theme preset styles: these override CSS variables based on the selected data-theme-preset */
+@import "../styles/presets/brutalist.css";
+@import "../styles/presets/soft-pop.css";
+@import "../styles/presets/tangerine.css";
+
+@custom-variant dark (&:is(.dark *));
+
+@theme inline {
+  --radius-sm: calc(var(--radius) - 4px);
+  --radius-md: calc(var(--radius) - 2px);
+  --radius-lg: var(--radius);
+  --radius-xl: calc(var(--radius) + 4px);
+  --radius-2xl: calc(var(--radius) + 8px);
+  --radius-3xl: calc(var(--radius) + 12px);
+  --radius-4xl: calc(var(--radius) + 16px);
+  --color-background: var(--background);
+  --color-foreground: var(--foreground);
+  --color-card: var(--card);
+  --color-card-foreground: var(--card-foreground);
+  --color-popover: var(--popover);
+  --color-popover-foreground: var(--popover-foreground);
+  --color-primary: var(--primary);
+  --color-primary-foreground: var(--primary-foreground);
+  --color-secondary: var(--secondary);
+  --color-secondary-foreground: var(--secondary-foreground);
+  --color-muted: var(--muted);
+  --color-muted-foreground: var(--muted-foreground);
+  --color-accent: var(--accent);
+  --color-accent-foreground: var(--accent-foreground);
+  --color-destructive: var(--destructive);
+  --color-border: var(--border);
+  --color-input: var(--input);
+  --color-ring: var(--ring);
+  --color-chart-1: var(--chart-1);
+  --color-chart-2: var(--chart-2);
+  --color-chart-3: var(--chart-3);
+  --color-chart-4: var(--chart-4);
+  --color-chart-5: var(--chart-5);
+  --color-sidebar: var(--sidebar);
+  --color-sidebar-foreground: var(--sidebar-foreground);
+  --color-sidebar-primary: var(--sidebar-primary);
+  --color-sidebar-primary-foreground: var(--sidebar-primary-foreground);
+  --color-sidebar-accent: var(--sidebar-accent);
+  --color-sidebar-accent-foreground: var(--sidebar-accent-foreground);
+  --color-sidebar-border: var(--sidebar-border);
+  --color-sidebar-ring: var(--sidebar-ring);
+  --font-heading: var(--font-sans);
+  --font-sans: var(--font-sans);
+}
+
+/* Default theme styles (used when no data-theme-preset is set or when 'default' is selected).
+These serve as the fallback; there is no separate default.css file. */
+:root {
+  --radius: 0.625rem;
+  --card: oklch(1 0 0);
+  --card-foreground: oklch(0.145 0 0);
+  --popover: oklch(1 0 0);
+  --popover-foreground: oklch(0.145 0 0);
+  --primary: oklch(0.205 0 0);
+  --primary-foreground: oklch(0.985 0 0);
+  --secondary: oklch(0.97 0 0);
+  --secondary-foreground: oklch(0.205 0 0);
+  --muted: oklch(0.97 0 0);
+  --muted-foreground: oklch(0.556 0 0);
+  --accent: oklch(0.97 0 0);
+  --accent-foreground: oklch(0.205 0 0);
+  --destructive: oklch(0.577 0.245 27.325);
+  --border: oklch(0.922 0 0);
+  --input: oklch(0.922 0 0);
+  --ring: oklch(0.708 0 0);
+  --chart-1: oklch(0.87 0 0);
+  --chart-2: oklch(0.556 0 0);
+  --chart-3: oklch(0.439 0 0);
+  --chart-4: oklch(0.371 0 0);
+  --chart-5: oklch(0.269 0 0);
+  --sidebar: oklch(0.985 0 0);
+  --sidebar-foreground: oklch(0.145 0 0);
+  --sidebar-primary: oklch(0.205 0 0);
+  --sidebar-primary-foreground: oklch(0.985 0 0);
+  --sidebar-accent: oklch(0.97 0 0);
+  --sidebar-accent-foreground: oklch(0.205 0 0);
+  --sidebar-border: oklch(0.922 0 0);
+  --sidebar-ring: oklch(0.708 0 0);
+
+  /* fonts */
+  --font-sans: var(--font-geist);
+  --font-mono: var(--font-geist-mono);
+  --background: oklch(1 0 0);
+  --foreground: oklch(0.145 0 0);
+}
+
+.dark {
+  --background: oklch(0.145 0 0);
+  --foreground: oklch(0.985 0 0);
+  --card: oklch(0.205 0 0);
+  --card-foreground: oklch(0.985 0 0);
+  --popover: oklch(0.205 0 0);
+  --popover-foreground: oklch(0.985 0 0);
+  --primary: oklch(0.922 0 0);
+  --primary-foreground: oklch(0.205 0 0);
+  --secondary: oklch(0.269 0 0);
+  --secondary-foreground: oklch(0.985 0 0);
+  --muted: oklch(0.269 0 0);
+  --muted-foreground: oklch(0.708 0 0);
+  --accent: oklch(0.269 0 0);
+  --accent-foreground: oklch(0.985 0 0);
+  --destructive: oklch(0.704 0.191 22.216);
+  --border: oklch(1 0 0 / 10%);
+  --input: oklch(1 0 0 / 15%);
+  --ring: oklch(0.556 0 0);
+  --chart-1: oklch(0.87 0 0);
+  --chart-2: oklch(0.556 0 0);
+  --chart-3: oklch(0.439 0 0);
+  --chart-4: oklch(0.371 0 0);
+  --chart-5: oklch(0.269 0 0);
+  --sidebar: oklch(0.205 0 0);
+  --sidebar-foreground: oklch(0.985 0 0);
+  --sidebar-primary: oklch(0.488 0.243 264.376);
+  --sidebar-primary-foreground: oklch(0.985 0 0);
+  --sidebar-accent: oklch(0.269 0 0);
+  --sidebar-accent-foreground: oklch(0.985 0 0);
+  --sidebar-border: oklch(1 0 0 / 10%);
+  --sidebar-ring: oklch(0.556 0 0);
+}
+
+@layer base {
+  * {
+    @apply border-border outline-ring/50;
+  }
+
+  body {
+    @apply bg-background text-foreground;
+    font-family: var(--font-sans), system-ui, sans-serif;
+  }
+
+  a[href],
+  button:not(:disabled),
+  [role="button"]:not([aria-disabled="true"]),
+  [role="menuitem"]:not([aria-disabled="true"]):not([data-disabled]),
+  [role="option"]:not([aria-disabled="true"]):not([data-disabled]),
+  [data-slot="button"]:not(:disabled),
+  [data-slot="command-item"]:not([data-disabled="true"]),
+  [data-slot="dropdown-menu-item"]:not([data-disabled]),
+  [data-slot="select-item"]:not([data-disabled]) {
+    cursor: pointer;
+  }
+
+  button:disabled,
+  [aria-disabled="true"],
+  [data-disabled] {
+    cursor: not-allowed;
+  }
+
+  html {
+    @apply font-sans;
+  }
+}
+
+@layer utilities {
+  [data-theme-preset]:not([data-theme-preset="default"]) .shadow-2xs {
+    box-shadow: var(--shadow-2xs);
+  }
+
+  [data-theme-preset]:not([data-theme-preset="default"]) .shadow-xs {
+    box-shadow: var(--shadow-xs);
+  }
+
+  [data-theme-preset]:not([data-theme-preset="default"]) .shadow-sm {
+    box-shadow: var(--shadow-sm);
+  }
+
+  [data-theme-preset]:not([data-theme-preset="default"]) .shadow {
+    box-shadow: var(--shadow);
+  }
+
+  [data-theme-preset]:not([data-theme-preset="default"]) .shadow-md {
+    box-shadow: var(--shadow-md);
+  }
+
+  [data-theme-preset]:not([data-theme-preset="default"]) .shadow-lg {
+    box-shadow: var(--shadow-lg);
+  }
+
+  [data-theme-preset]:not([data-theme-preset="default"]) .shadow-xl {
+    box-shadow: var(--shadow-xl);
+  }
+
+  [data-theme-preset]:not([data-theme-preset="default"]) .shadow-2xl {
+    box-shadow: var(--shadow-2xl);
+  }
+
+  html[data-font="inter"] body {
+    --font-sans: var(--font-inter);
+  }
+  html[data-font="notoSans"] body {
+    --font-sans: var(--font-noto-sans);
+  }
+  html[data-font="nunitoSans"] body {
+    --font-sans: var(--font-nunito-sans);
+  }
+  html[data-font="figtree"] body {
+    --font-sans: var(--font-figtree);
+  }
+  html[data-font="roboto"] body {
+    --font-sans: var(--font-roboto);
+  }
+  html[data-font="geist"] body {
+    --font-sans: var(--font-geist);
+  }
+  html[data-font="raleway"] body {
+    --font-sans: var(--font-raleway);
+  }
+  html[data-font="dmSans"] body {
+    --font-sans: var(--font-dm-sans);
+  }
+  html[data-font="publicSans"] body {
+    --font-sans: var(--font-public-sans);
+  }
+  html[data-font="outfit"] body {
+    --font-sans: var(--font-outfit);
+  }
+  html[data-font="geistMono"] body {
+    --font-sans: var(--font-geist-mono);
+  }
+  html[data-font="geistPixelSquare"] body {
+    --font-sans: var(--font-geist-pixel-square);
+  }
+  html[data-font="jetBrainsMono"] body {
+    --font-sans: var(--font-jetbrains-mono);
+  }
+  html[data-font="notoSerif"] body {
+    --font-sans: var(--font-noto-serif);
+  }
+  html[data-font="robotoSlab"] body {
+    --font-sans: var(--font-roboto-slab);
+  }
+  html[data-font="merriweather"] body {
+    --font-sans: var(--font-merriweather);
+  }
+  html[data-font="lora"] body {
+    --font-sans: var(--font-lora);
+  }
+  html[data-font="playfairDisplay"] body {
+    --font-sans: var(--font-playfair-display);
+  }
+}
+
+html {
+  overscroll-behavior: none;
+}
+
+.disable-transitions * {
+  transition: none !important;
+}
+
+[data-print-root] {
+  display: none;
+}
+
+@media print {
+  @page {
+    size: Letter;
+    margin: 0;
+  }
+
+  html,
+  body {
+    width: 8.5in !important;
+    height: 11in !important;
+    margin: 0 !important;
+    overflow: hidden !important;
+  }
+
+  body > *:not([data-print-root]) {
+    display: none !important;
+  }
+
+  [data-print-root] {
+    display: block !important;
+    width: 8.5in !important;
+    height: 11in !important;
+    margin: 0 !important;
+    overflow: hidden !important;
+    background: white !important;
+  }
+
+  [data-print-root] [data-print-paper] {
+    width: 8.5in !important;
+    height: 11in !important;
+    margin: 0 !important;
+    box-shadow: none !important;
+  }
+
+  [data-print-root] [data-print-paper],
+  [data-print-root] [data-print-paper] * {
+    print-color-adjust: exact;
+    -webkit-print-color-adjust: exact;
+  }
+}

frontend/src/app/layout.tsx

@@ -0,0 +1,48 @@
+import type { Metadata } from "next";
+import type { ReactNode } from "react";
+
+import { Toaster } from "@/components/ui/sonner";
+import { TooltipProvider } from "@/components/ui/tooltip";
+import { APP_CONFIG } from "@/config/app-config";
+import { fontVars } from "@/lib/fonts/registry";
+import { PREFERENCE_DEFAULTS } from "@/lib/preferences/preferences-config";
+import { ThemeBootScript } from "@/scripts/theme-boot";
+import { PreferencesStoreProvider } from "@/stores/preferences/preferences-provider";
+
+import "./globals.css";
+
+export const metadata: Metadata = {
+  title: APP_CONFIG.meta.title,
+  description: APP_CONFIG.meta.description,
+};
+
+export default function RootLayout({ children }: Readonly<{ children: ReactNode }>) {
+  const { theme_mode, theme_preset, content_layout, navbar_style, sidebar_variant, sidebar_collapsible, font } =
+    PREFERENCE_DEFAULTS;
+
+  return (
+    <html
+      lang="de"
+      data-theme-mode={theme_mode}
+      data-theme-preset={theme_preset}
+      data-content-layout={content_layout}
+      data-navbar-style={navbar_style}
+      data-sidebar-variant={sidebar_variant}
+      data-sidebar-collapsible={sidebar_collapsible}
+      data-font={font}
+      suppressHydrationWarning
+    >
+      <head>
+        <ThemeBootScript />
+      </head>
+      <body className={`${fontVars} min-h-screen antialiased`}>
+        <TooltipProvider>
+          <PreferencesStoreProvider initialValues={PREFERENCE_DEFAULTS}>
+            {children}
+            <Toaster />
+          </PreferencesStoreProvider>
+        </TooltipProvider>
+      </body>
+    </html>
+  );
+}

frontend/src/components/CopyTicketButton.tsx

@@ -0,0 +1,40 @@
+import { Copy } from "lucide-react";
+import { toast } from "sonner";
+
+import { Button } from "@/components/ui/button";
+
+type CopyTicketButtonProps = {
+  ticketNumber: string;
+};
+
+export function CopyTicketButton({ ticketNumber }: CopyTicketButtonProps) {
+  async function copyTicketNumber() {
+    try {
+      await navigator.clipboard.writeText(ticketNumber);
+      toast.success("Ticketnummer kopiert", {
+        description: ticketNumber
+      });
+    } catch (error) {
+      toast.error("Ticketnummer konnte nicht kopiert werden", {
+        description: error instanceof Error ? error.message : "Zwischenablage nicht verfügbar"
+      });
+    }
+  }
+
+  return (
+    <Button
+      type="button"
+      variant="ghost"
+      size="icon-sm"
+      className="shrink-0"
+      onClick={(event) => {
+        event.stopPropagation();
+        void copyTicketNumber();
+      }}
+      title="Ticketnummer kopieren"
+    >
+      <Copy className="size-4" />
+      <span className="sr-only">Ticketnummer kopieren</span>
+    </Button>
+  );
+}

frontend/src/components/OrganizationSelect.tsx

@@ -0,0 +1,112 @@
+import { Check, ChevronsUpDown } from "lucide-react";
+import { useEffect, useMemo, useState } from "react";
+import { toast } from "sonner";
+
+import { Button } from "@/components/ui/button";
+import { Command, CommandEmpty, CommandGroup, CommandInput, CommandItem, CommandList } from "@/components/ui/command";
+import { Popover, PopoverContent, PopoverTrigger } from "@/components/ui/popover";
+import { cn } from "@/lib/utils";
+import { getOrganizations } from "../api";
+import type { Organization } from "../types";
+
+type OrganizationSelectProps = {
+  value: string;
+  selectedName?: string | null;
+  onChange: (organization: Organization) => void;
+  disabled?: boolean;
+  required?: boolean;
+  placeholder?: string;
+};
+
+export function OrganizationSelect({
+  value,
+  selectedName,
+  onChange,
+  disabled = false,
+  required = false,
+  placeholder = "Organisation wählen"
+}: OrganizationSelectProps) {
+  const [open, setOpen] = useState(false);
+  const [search, setSearch] = useState("");
+  const [organizations, setOrganizations] = useState<Organization[]>([]);
+  const [loading, setLoading] = useState(false);
+
+  useEffect(() => {
+    let cancelled = false;
+
+    async function load() {
+      setLoading(true);
+      try {
+        const result = await getOrganizations(search);
+
+        if (!cancelled) {
+          setOrganizations(result.organizations);
+        }
+      } catch (error) {
+        if (!cancelled) {
+          toast.error("Organisationen konnten nicht geladen werden", {
+            description: error instanceof Error ? error.message : "Unbekannter Fehler"
+          });
+        }
+      } finally {
+        if (!cancelled) {
+          setLoading(false);
+        }
+      }
+    }
+
+    if (open || value) {
+      void load();
+    }
+
+    return () => {
+      cancelled = true;
+    };
+  }, [open, search, value]);
+
+  const selectedOrganization = useMemo(() => organizations.find((organization) => organization.id === value) ?? null, [organizations, value]);
+  const label = selectedOrganization?.name ?? selectedName ?? "";
+
+  return (
+    <Popover open={open} onOpenChange={setOpen}>
+      <PopoverTrigger asChild>
+        <Button
+          type="button"
+          variant="outline"
+          role="combobox"
+          aria-expanded={open}
+          disabled={disabled}
+          className={cn("h-9 w-full justify-between px-3 font-normal", !label && "text-muted-foreground")}
+        >
+          <span className="truncate">{label || placeholder}</span>
+          <ChevronsUpDown className="size-4 shrink-0 opacity-50" />
+        </Button>
+      </PopoverTrigger>
+      <PopoverContent align="start" className="w-[--radix-popover-trigger-width] p-0">
+        <Command shouldFilter={false}>
+          <CommandInput placeholder="Organisation suchen..." value={search} onValueChange={setSearch} />
+          <CommandList>
+            <CommandEmpty>{loading ? "Lädt..." : "Keine Organisation gefunden."}</CommandEmpty>
+            <CommandGroup>
+              {organizations.map((organization) => (
+                <CommandItem
+                  key={organization.id}
+                  value={organization.name}
+                  onSelect={() => {
+                    onChange(organization);
+                    setOpen(false);
+                    setSearch("");
+                  }}
+                >
+                  <span className="truncate">{organization.name}</span>
+                  <Check className={cn("ml-auto size-4", value === organization.id ? "opacity-100" : "opacity-0")} />
+                </CommandItem>
+              ))}
+            </CommandGroup>
+          </CommandList>
+        </Command>
+        {required && !value ? <input className="sr-only" tabIndex={-1} required value="" onChange={() => undefined} /> : null}
+      </PopoverContent>
+    </Popover>
+  );
+}

frontend/src/components/ui/accordion.tsx

@@ -0,0 +1,81 @@
+"use client"
+
+import * as React from "react"
+import { Accordion as AccordionPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { ChevronDownIcon, ChevronUpIcon } from "lucide-react"
+
+function Accordion({
+  className,
+  ...props
+}: React.ComponentProps<typeof AccordionPrimitive.Root>) {
+  return (
+    <AccordionPrimitive.Root
+      data-slot="accordion"
+      className={cn("flex w-full flex-col", className)}
+      {...props}
+    />
+  )
+}
+
+function AccordionItem({
+  className,
+  ...props
+}: React.ComponentProps<typeof AccordionPrimitive.Item>) {
+  return (
+    <AccordionPrimitive.Item
+      data-slot="accordion-item"
+      className={cn("not-last:border-b", className)}
+      {...props}
+    />
+  )
+}
+
+function AccordionTrigger({
+  className,
+  children,
+  ...props
+}: React.ComponentProps<typeof AccordionPrimitive.Trigger>) {
+  return (
+    <AccordionPrimitive.Header className="flex">
+      <AccordionPrimitive.Trigger
+        data-slot="accordion-trigger"
+        className={cn(
+          "group/accordion-trigger relative flex flex-1 items-start justify-between rounded-lg border border-transparent py-2.5 text-left text-sm font-medium transition-all outline-none hover:underline focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 focus-visible:after:border-ring disabled:pointer-events-none disabled:opacity-50 **:data-[slot=accordion-trigger-icon]:ml-auto **:data-[slot=accordion-trigger-icon]:size-4 **:data-[slot=accordion-trigger-icon]:text-muted-foreground",
+          className
+        )}
+        {...props}
+      >
+        {children}
+        <ChevronDownIcon data-slot="accordion-trigger-icon" className="pointer-events-none shrink-0 group-aria-expanded/accordion-trigger:hidden" />
+        <ChevronUpIcon data-slot="accordion-trigger-icon" className="pointer-events-none hidden shrink-0 group-aria-expanded/accordion-trigger:inline" />
+      </AccordionPrimitive.Trigger>
+    </AccordionPrimitive.Header>
+  )
+}
+
+function AccordionContent({
+  className,
+  children,
+  ...props
+}: React.ComponentProps<typeof AccordionPrimitive.Content>) {
+  return (
+    <AccordionPrimitive.Content
+      data-slot="accordion-content"
+      className="overflow-hidden text-sm data-open:animate-accordion-down data-closed:animate-accordion-up"
+      {...props}
+    >
+      <div
+        className={cn(
+          "h-(--radix-accordion-content-height) pt-0 pb-2.5 [&_a]:underline [&_a]:underline-offset-3 [&_a]:hover:text-foreground [&_p:not(:last-child)]:mb-4",
+          className
+        )}
+      >
+        {children}
+      </div>
+    </AccordionPrimitive.Content>
+  )
+}
+
+export { Accordion, AccordionItem, AccordionTrigger, AccordionContent }

frontend/src/components/ui/alert-dialog.tsx

@@ -0,0 +1,199 @@
+"use client"
+
+import * as React from "react"
+import { AlertDialog as AlertDialogPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { Button } from "@/components/ui/button"
+
+function AlertDialog({
+  ...props
+}: React.ComponentProps<typeof AlertDialogPrimitive.Root>) {
+  return <AlertDialogPrimitive.Root data-slot="alert-dialog" {...props} />
+}
+
+function AlertDialogTrigger({
+  ...props
+}: React.ComponentProps<typeof AlertDialogPrimitive.Trigger>) {
+  return (
+    <AlertDialogPrimitive.Trigger data-slot="alert-dialog-trigger" {...props} />
+  )
+}
+
+function AlertDialogPortal({
+  ...props
+}: React.ComponentProps<typeof AlertDialogPrimitive.Portal>) {
+  return (
+    <AlertDialogPrimitive.Portal data-slot="alert-dialog-portal" {...props} />
+  )
+}
+
+function AlertDialogOverlay({
+  className,
+  ...props
+}: React.ComponentProps<typeof AlertDialogPrimitive.Overlay>) {
+  return (
+    <AlertDialogPrimitive.Overlay
+      data-slot="alert-dialog-overlay"
+      className={cn(
+        "fixed inset-0 z-50 bg-black/10 duration-100 supports-backdrop-filter:backdrop-blur-xs data-open:animate-in data-open:fade-in-0 data-closed:animate-out data-closed:fade-out-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AlertDialogContent({
+  className,
+  size = "default",
+  ...props
+}: React.ComponentProps<typeof AlertDialogPrimitive.Content> & {
+  size?: "default" | "sm"
+}) {
+  return (
+    <AlertDialogPortal>
+      <AlertDialogOverlay />
+      <AlertDialogPrimitive.Content
+        data-slot="alert-dialog-content"
+        data-size={size}
+        className={cn(
+          "group/alert-dialog-content fixed top-1/2 left-1/2 z-50 grid w-full -translate-x-1/2 -translate-y-1/2 gap-4 rounded-xl bg-popover p-4 text-popover-foreground ring-1 ring-foreground/10 duration-100 outline-none data-[size=default]:max-w-xs data-[size=sm]:max-w-xs data-[size=default]:sm:max-w-sm data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95",
+          className
+        )}
+        {...props}
+      />
+    </AlertDialogPortal>
+  )
+}
+
+function AlertDialogHeader({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="alert-dialog-header"
+      className={cn(
+        "grid grid-rows-[auto_1fr] place-items-center gap-1.5 text-center has-data-[slot=alert-dialog-media]:grid-rows-[auto_auto_1fr] has-data-[slot=alert-dialog-media]:gap-x-4 sm:group-data-[size=default]/alert-dialog-content:place-items-start sm:group-data-[size=default]/alert-dialog-content:text-left sm:group-data-[size=default]/alert-dialog-content:has-data-[slot=alert-dialog-media]:grid-rows-[auto_1fr]",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AlertDialogFooter({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="alert-dialog-footer"
+      className={cn(
+        "-mx-4 -mb-4 flex flex-col-reverse gap-2 rounded-b-xl border-t bg-muted/50 p-4 group-data-[size=sm]/alert-dialog-content:grid group-data-[size=sm]/alert-dialog-content:grid-cols-2 sm:flex-row sm:justify-end",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AlertDialogMedia({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="alert-dialog-media"
+      className={cn(
+        "mb-2 inline-flex size-10 items-center justify-center rounded-md bg-muted sm:group-data-[size=default]/alert-dialog-content:row-span-2 *:[svg:not([class*='size-'])]:size-6",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AlertDialogTitle({
+  className,
+  ...props
+}: React.ComponentProps<typeof AlertDialogPrimitive.Title>) {
+  return (
+    <AlertDialogPrimitive.Title
+      data-slot="alert-dialog-title"
+      className={cn(
+        "font-heading text-base font-medium sm:group-data-[size=default]/alert-dialog-content:group-has-data-[slot=alert-dialog-media]/alert-dialog-content:col-start-2",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AlertDialogDescription({
+  className,
+  ...props
+}: React.ComponentProps<typeof AlertDialogPrimitive.Description>) {
+  return (
+    <AlertDialogPrimitive.Description
+      data-slot="alert-dialog-description"
+      className={cn(
+        "text-sm text-balance text-muted-foreground md:text-pretty *:[a]:underline *:[a]:underline-offset-3 *:[a]:hover:text-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AlertDialogAction({
+  className,
+  variant = "default",
+  size = "default",
+  ...props
+}: React.ComponentProps<typeof AlertDialogPrimitive.Action> &
+  Pick<React.ComponentProps<typeof Button>, "variant" | "size">) {
+  return (
+    <Button variant={variant} size={size} asChild>
+      <AlertDialogPrimitive.Action
+        data-slot="alert-dialog-action"
+        className={cn(className)}
+        {...props}
+      />
+    </Button>
+  )
+}
+
+function AlertDialogCancel({
+  className,
+  variant = "outline",
+  size = "default",
+  ...props
+}: React.ComponentProps<typeof AlertDialogPrimitive.Cancel> &
+  Pick<React.ComponentProps<typeof Button>, "variant" | "size">) {
+  return (
+    <Button variant={variant} size={size} asChild>
+      <AlertDialogPrimitive.Cancel
+        data-slot="alert-dialog-cancel"
+        className={cn(className)}
+        {...props}
+      />
+    </Button>
+  )
+}
+
+export {
+  AlertDialog,
+  AlertDialogAction,
+  AlertDialogCancel,
+  AlertDialogContent,
+  AlertDialogDescription,
+  AlertDialogFooter,
+  AlertDialogHeader,
+  AlertDialogMedia,
+  AlertDialogOverlay,
+  AlertDialogPortal,
+  AlertDialogTitle,
+  AlertDialogTrigger,
+}

frontend/src/components/ui/alert.tsx

@@ -0,0 +1,80 @@
+import * as React from "react"
+import { cva, type VariantProps } from "class-variance-authority"
+
+import { cn } from "@/lib/utils"
+
+const alertVariants = cva(
+  "group/alert relative grid w-full gap-0.5 rounded-lg border px-2.5 py-2 text-left text-sm has-data-[slot=alert-action]:relative has-data-[slot=alert-action]:pr-18 has-[>svg]:grid-cols-[auto_1fr] has-[>svg]:gap-x-2 *:[svg]:row-span-2 *:[svg]:translate-y-0.5 *:[svg]:text-current *:[svg:not([class*='size-'])]:size-4",
+  {
+    variants: {
+      variant: {
+        default: "bg-card text-card-foreground",
+        destructive:
+          "bg-card text-destructive *:data-[slot=alert-description]:text-destructive/90 *:[svg]:text-current",
+        success:
+          "border-emerald-500/30 bg-emerald-500/10 text-emerald-800 dark:text-emerald-200",
+        warning:
+          "border-amber-500/30 bg-amber-500/10 text-amber-800 dark:text-amber-200",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+    },
+  }
+)
+
+function Alert({
+  className,
+  variant,
+  ...props
+}: React.ComponentProps<"div"> & VariantProps<typeof alertVariants>) {
+  return (
+    <div
+      data-slot="alert"
+      role="alert"
+      className={cn(alertVariants({ variant }), className)}
+      {...props}
+    />
+  )
+}
+
+function AlertTitle({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="alert-title"
+      className={cn(
+        "font-medium group-has-[>svg]/alert:col-start-2 [&_a]:underline [&_a]:underline-offset-3 [&_a]:hover:text-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AlertDescription({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="alert-description"
+      className={cn(
+        "text-sm text-balance text-muted-foreground md:text-pretty [&_a]:underline [&_a]:underline-offset-3 [&_a]:hover:text-foreground [&_p:not(:last-child)]:mb-4",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AlertAction({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="alert-action"
+      className={cn("absolute top-2 right-2", className)}
+      {...props}
+    />
+  )
+}
+
+export { Alert, AlertTitle, AlertDescription, AlertAction }

frontend/src/components/ui/aspect-ratio.tsx

@@ -0,0 +1,11 @@
+"use client"
+
+import { AspectRatio as AspectRatioPrimitive } from "radix-ui"
+
+function AspectRatio({
+  ...props
+}: React.ComponentProps<typeof AspectRatioPrimitive.Root>) {
+  return <AspectRatioPrimitive.Root data-slot="aspect-ratio" {...props} />
+}
+
+export { AspectRatio }

frontend/src/components/ui/attachment.tsx

@@ -0,0 +1,204 @@
+import * as React from "react"
+import { cva, type VariantProps } from "class-variance-authority"
+import { Slot } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { Button } from "@/components/ui/button"
+
+const attachmentVariants = cva(
+  "group/attachment relative flex w-fit max-w-full min-w-0 shrink-0 flex-wrap rounded-xl border bg-card text-card-foreground transition-colors focus-within:ring-1 focus-within:ring-ring/50 has-[>a,>button]:hover:bg-muted/50 data-[state=error]:border-destructive/30 data-[state=idle]:border-dashed",
+  {
+    variants: {
+      size: {
+        default:
+          "gap-2 text-sm has-data-[slot=attachment-content]:px-2.5 has-data-[slot=attachment-content]:py-2 has-data-[slot=attachment-media]:p-2",
+        sm: "gap-2.5 text-xs has-data-[slot=attachment-content]:px-2 has-data-[slot=attachment-content]:py-1.5 has-data-[slot=attachment-media]:p-1.5",
+        xs: "gap-1.5 rounded-lg text-xs has-data-[slot=attachment-content]:px-1.5 has-data-[slot=attachment-content]:py-1 has-data-[slot=attachment-media]:p-1",
+      },
+      orientation: {
+        horizontal: "min-w-40 items-center",
+        vertical: "w-24 flex-col has-data-[slot=attachment-content]:w-30",
+      },
+    },
+  }
+)
+
+function Attachment({
+  className,
+  state = "done",
+  size = "default",
+  orientation = "horizontal",
+  ...props
+}: React.ComponentProps<"div"> &
+  VariantProps<typeof attachmentVariants> & {
+    state?: "idle" | "uploading" | "processing" | "error" | "done"
+  }) {
+  return (
+    <div
+      data-slot="attachment"
+      data-state={state}
+      data-size={size}
+      data-orientation={orientation}
+      className={cn(attachmentVariants({ size, orientation }), className)}
+      {...props}
+    />
+  )
+}
+
+const attachmentMediaVariants = cva(
+  "relative flex aspect-square w-10 shrink-0 items-center justify-center overflow-hidden rounded-lg bg-muted text-foreground group-data-[orientation=vertical]/attachment:w-full group-data-[size=sm]/attachment:w-8 group-data-[size=xs]/attachment:w-7 group-data-[size=xs]/attachment:rounded-md group-data-[state=error]/attachment:bg-destructive/10 group-data-[state=error]/attachment:text-destructive group-data-[orientation=vertical]/attachment:*:data-[slot=spinner]:size-6! [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4 group-data-[orientation=vertical]/attachment:[&_svg:not([class*='size-'])]:size-6 group-data-[size=xs]/attachment:[&_svg:not([class*='size-'])]:size-3.5",
+  {
+    variants: {
+      variant: {
+        icon: "",
+        image:
+          "opacity-60 group-data-[state=done]/attachment:opacity-100 group-data-[state=idle]/attachment:opacity-100 *:[img]:aspect-square *:[img]:w-full *:[img]:object-cover",
+      },
+    },
+    defaultVariants: {
+      variant: "icon",
+    },
+  }
+)
+
+function AttachmentMedia({
+  className,
+  variant = "icon",
+  ...props
+}: React.ComponentProps<"div"> & VariantProps<typeof attachmentMediaVariants>) {
+  return (
+    <div
+      data-slot="attachment-media"
+      data-variant={variant}
+      className={cn(attachmentMediaVariants({ variant }), className)}
+      {...props}
+    />
+  )
+}
+
+function AttachmentContent({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="attachment-content"
+      className={cn(
+        "max-w-full min-w-0 flex-1 leading-tight group-data-[orientation=vertical]/attachment:px-1",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AttachmentTitle({
+  className,
+  ...props
+}: React.ComponentProps<"span">) {
+  return (
+    <span
+      data-slot="attachment-title"
+      className={cn(
+        "block max-w-full min-w-0 truncate font-medium group-data-[state=processing]/attachment:shimmer group-data-[state=uploading]/attachment:shimmer",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AttachmentDescription({
+  className,
+  ...props
+}: React.ComponentProps<"span">) {
+  return (
+    <span
+      data-slot="attachment-description"
+      className={cn(
+        "mt-0.5 block min-w-0 truncate text-xs text-muted-foreground group-data-[state=error]/attachment:text-destructive/80",
+        "max-w-full",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AttachmentActions({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="attachment-actions"
+      className={cn(
+        "relative z-20 flex shrink-0 items-center group-data-[orientation=vertical]/attachment:absolute group-data-[orientation=vertical]/attachment:top-3 group-data-[orientation=vertical]/attachment:right-3 group-data-[orientation=vertical]/attachment:gap-1",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AttachmentAction({
+  className,
+  variant,
+  size = "icon-xs",
+  ...props
+}: React.ComponentProps<typeof Button>) {
+  return (
+    <Button
+      data-slot="attachment-action"
+      variant={variant ?? "ghost"}
+      size={size}
+      className={cn(className)}
+      {...props}
+    />
+  )
+}
+
+function AttachmentTrigger({
+  className,
+  asChild = false,
+  type,
+  ...props
+}: React.ComponentProps<"button"> & {
+  asChild?: boolean
+}) {
+  const Comp = asChild ? Slot.Root : "button"
+
+  return (
+    <Comp
+      data-slot="attachment-trigger"
+      type={asChild ? undefined : (type ?? "button")}
+      className={cn("absolute inset-0 z-10 outline-none", className)}
+      {...props}
+    />
+  )
+}
+
+function AttachmentGroup({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="attachment-group"
+      className={cn(
+        "flex min-w-0 scroll-fade-x snap-x snap-mandatory scroll-px-1 scrollbar-none gap-3 overflow-x-auto overscroll-x-contain py-1 *:data-[slot=attachment]:flex-none *:data-[slot=attachment]:snap-start",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  Attachment,
+  AttachmentGroup,
+  AttachmentMedia,
+  AttachmentContent,
+  AttachmentTitle,
+  AttachmentDescription,
+  AttachmentActions,
+  AttachmentAction,
+  AttachmentTrigger,
+}

frontend/src/components/ui/avatar.tsx

@@ -0,0 +1,112 @@
+"use client"
+
+import * as React from "react"
+import { Avatar as AvatarPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function Avatar({
+  className,
+  size = "default",
+  ...props
+}: React.ComponentProps<typeof AvatarPrimitive.Root> & {
+  size?: "default" | "sm" | "lg"
+}) {
+  return (
+    <AvatarPrimitive.Root
+      data-slot="avatar"
+      data-size={size}
+      className={cn(
+        "group/avatar relative flex size-8 shrink-0 rounded-full select-none after:absolute after:inset-0 after:rounded-full after:border after:border-border after:mix-blend-darken data-[size=lg]:size-10 data-[size=sm]:size-6 dark:after:mix-blend-lighten",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AvatarImage({
+  className,
+  ...props
+}: React.ComponentProps<typeof AvatarPrimitive.Image>) {
+  return (
+    <AvatarPrimitive.Image
+      data-slot="avatar-image"
+      className={cn(
+        "aspect-square size-full rounded-full object-cover",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AvatarFallback({
+  className,
+  ...props
+}: React.ComponentProps<typeof AvatarPrimitive.Fallback>) {
+  return (
+    <AvatarPrimitive.Fallback
+      data-slot="avatar-fallback"
+      className={cn(
+        "flex size-full items-center justify-center rounded-full bg-muted text-sm text-muted-foreground group-data-[size=sm]/avatar:text-xs",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AvatarBadge({ className, ...props }: React.ComponentProps<"span">) {
+  return (
+    <span
+      data-slot="avatar-badge"
+      className={cn(
+        "absolute right-0 bottom-0 z-10 inline-flex items-center justify-center rounded-full bg-primary text-primary-foreground bg-blend-color ring-2 ring-background select-none",
+        "group-data-[size=sm]/avatar:size-2 group-data-[size=sm]/avatar:[&>svg]:hidden",
+        "group-data-[size=default]/avatar:size-2.5 group-data-[size=default]/avatar:[&>svg]:size-2",
+        "group-data-[size=lg]/avatar:size-3 group-data-[size=lg]/avatar:[&>svg]:size-2",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AvatarGroup({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="avatar-group"
+      className={cn(
+        "group/avatar-group flex -space-x-2 *:data-[slot=avatar]:ring-2 *:data-[slot=avatar]:ring-background",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AvatarGroupCount({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="avatar-group-count"
+      className={cn(
+        "relative flex size-8 shrink-0 items-center justify-center rounded-full bg-muted text-sm text-muted-foreground ring-2 ring-background group-has-data-[size=lg]/avatar-group:size-10 group-has-data-[size=sm]/avatar-group:size-6 [&>svg]:size-4 group-has-data-[size=lg]/avatar-group:[&>svg]:size-5 group-has-data-[size=sm]/avatar-group:[&>svg]:size-3",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  Avatar,
+  AvatarImage,
+  AvatarFallback,
+  AvatarGroup,
+  AvatarGroupCount,
+  AvatarBadge,
+}

frontend/src/components/ui/badge.tsx

@@ -0,0 +1,55 @@
+import * as React from "react"
+import { cva, type VariantProps } from "class-variance-authority"
+import { Slot } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+const badgeVariants = cva(
+  "group/badge inline-flex h-5 w-fit shrink-0 items-center justify-center gap-1 overflow-hidden rounded-4xl border border-transparent px-2 py-0.5 text-xs font-medium whitespace-nowrap transition-all focus-visible:border-ring focus-visible:ring-[3px] focus-visible:ring-ring/50 has-data-[icon=inline-end]:pr-1.5 has-data-[icon=inline-start]:pl-1.5 aria-invalid:border-destructive aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 [&>svg]:pointer-events-none [&>svg]:size-3!",
+  {
+    variants: {
+      variant: {
+        default: "bg-primary text-primary-foreground [a]:hover:bg-primary/80",
+        secondary:
+          "bg-secondary text-secondary-foreground [a]:hover:bg-secondary/80",
+        destructive:
+          "bg-destructive/10 text-destructive focus-visible:ring-destructive/20 dark:bg-destructive/20 dark:focus-visible:ring-destructive/40 [a]:hover:bg-destructive/20",
+        success:
+          "bg-emerald-500/10 text-emerald-700 dark:bg-emerald-500/15 dark:text-emerald-300",
+        warning:
+          "bg-amber-500/10 text-amber-700 dark:bg-amber-500/15 dark:text-amber-300",
+        info:
+          "bg-muted text-muted-foreground",
+        outline:
+          "border-border text-foreground [a]:hover:bg-muted [a]:hover:text-muted-foreground",
+        ghost:
+          "hover:bg-muted hover:text-muted-foreground dark:hover:bg-muted/50",
+        link: "text-primary underline-offset-4 hover:underline",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+    },
+  }
+)
+
+function Badge({
+  className,
+  variant = "default",
+  asChild = false,
+  ...props
+}: React.ComponentProps<"span"> &
+  VariantProps<typeof badgeVariants> & { asChild?: boolean }) {
+  const Comp = asChild ? Slot.Root : "span"
+
+  return (
+    <Comp
+      data-slot="badge"
+      data-variant={variant}
+      className={cn(badgeVariants({ variant }), className)}
+      {...props}
+    />
+  )
+}
+
+export { Badge, badgeVariants }

frontend/src/components/ui/breadcrumb.tsx

@@ -0,0 +1,122 @@
+import * as React from "react"
+import { Slot } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { ChevronRightIcon, MoreHorizontalIcon } from "lucide-react"
+
+function Breadcrumb({ className, ...props }: React.ComponentProps<"nav">) {
+  return (
+    <nav
+      aria-label="breadcrumb"
+      data-slot="breadcrumb"
+      className={cn(className)}
+      {...props}
+    />
+  )
+}
+
+function BreadcrumbList({ className, ...props }: React.ComponentProps<"ol">) {
+  return (
+    <ol
+      data-slot="breadcrumb-list"
+      className={cn(
+        "flex flex-wrap items-center gap-1.5 text-sm wrap-break-word text-muted-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function BreadcrumbItem({ className, ...props }: React.ComponentProps<"li">) {
+  return (
+    <li
+      data-slot="breadcrumb-item"
+      className={cn("inline-flex items-center gap-1", className)}
+      {...props}
+    />
+  )
+}
+
+function BreadcrumbLink({
+  asChild,
+  className,
+  ...props
+}: React.ComponentProps<"a"> & {
+  asChild?: boolean
+}) {
+  const Comp = asChild ? Slot.Root : "a"
+
+  return (
+    <Comp
+      data-slot="breadcrumb-link"
+      className={cn("transition-colors hover:text-foreground", className)}
+      {...props}
+    />
+  )
+}
+
+function BreadcrumbPage({ className, ...props }: React.ComponentProps<"span">) {
+  return (
+    <span
+      data-slot="breadcrumb-page"
+      role="link"
+      aria-disabled="true"
+      aria-current="page"
+      className={cn("font-normal text-foreground", className)}
+      {...props}
+    />
+  )
+}
+
+function BreadcrumbSeparator({
+  children,
+  className,
+  ...props
+}: React.ComponentProps<"li">) {
+  return (
+    <li
+      data-slot="breadcrumb-separator"
+      role="presentation"
+      aria-hidden="true"
+      className={cn("[&>svg]:size-3.5", className)}
+      {...props}
+    >
+      {children ?? (
+        <ChevronRightIcon />
+      )}
+    </li>
+  )
+}
+
+function BreadcrumbEllipsis({
+  className,
+  ...props
+}: React.ComponentProps<"span">) {
+  return (
+    <span
+      data-slot="breadcrumb-ellipsis"
+      role="presentation"
+      aria-hidden="true"
+      className={cn(
+        "flex size-5 items-center justify-center [&>svg]:size-4",
+        className
+      )}
+      {...props}
+    >
+      <MoreHorizontalIcon
+      />
+      <span className="sr-only">More</span>
+    </span>
+  )
+}
+
+export {
+  Breadcrumb,
+  BreadcrumbList,
+  BreadcrumbItem,
+  BreadcrumbLink,
+  BreadcrumbPage,
+  BreadcrumbSeparator,
+  BreadcrumbEllipsis,
+}

frontend/src/components/ui/bubble.tsx

@@ -0,0 +1,125 @@
+import * as React from "react"
+import { cva, type VariantProps } from "class-variance-authority"
+import { Slot } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function BubbleGroup({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="bubble-group"
+      className={cn("flex min-w-0 flex-col gap-2", className)}
+      {...props}
+    />
+  )
+}
+
+const bubbleVariants = cva(
+  "group/bubble relative flex w-fit max-w-[80%] min-w-0 flex-col gap-1 group-data-[align=end]/message:self-end data-[align=end]:self-end data-[variant=ghost]:max-w-full",
+  {
+    variants: {
+      variant: {
+        default:
+          "*:data-[slot=bubble-content]:bg-primary *:data-[slot=bubble-content]:text-primary-foreground [&>[data-slot=bubble-content]:is(button,a):hover]:bg-primary/80",
+        secondary:
+          "*:data-[slot=bubble-content]:bg-secondary *:data-[slot=bubble-content]:text-secondary-foreground [&>[data-slot=bubble-content]:is(button,a):hover]:bg-[color-mix(in_oklch,var(--secondary),var(--foreground)_5%)]",
+        muted:
+          "*:data-[slot=bubble-content]:bg-muted [&>[data-slot=bubble-content]:is(button,a):hover]:bg-[color-mix(in_oklch,var(--muted),var(--foreground)_5%)]",
+        tinted:
+          "*:data-[slot=bubble-content]:bg-[oklch(from_var(--primary)_0.93_calc(c*0.4)_h)] *:data-[slot=bubble-content]:text-foreground dark:*:data-[slot=bubble-content]:bg-[oklch(from_var(--primary)_0.3_calc(c*0.4)_h)] [&>[data-slot=bubble-content]:is(button,a):hover]:bg-[oklch(from_var(--primary)_0.88_calc(c*0.5)_h)] dark:[&>[data-slot=bubble-content]:is(button,a):hover]:bg-[oklch(from_var(--primary)_0.35_calc(c*0.5)_h)]",
+        outline:
+          "*:data-[slot=bubble-content]:border-border *:data-[slot=bubble-content]:bg-background [&>[data-slot=bubble-content]:is(button,a):hover]:bg-muted [&>[data-slot=bubble-content]:is(button,a):hover]:text-foreground dark:[&>[data-slot=bubble-content]:is(button,a):hover]:bg-input/30",
+        ghost:
+          "border-none *:data-[slot=bubble-content]:rounded-none *:data-[slot=bubble-content]:bg-transparent *:data-[slot=bubble-content]:p-0 [&>[data-slot=bubble-content]:is(button,a):hover]:bg-muted [&>[data-slot=bubble-content]:is(button,a):hover]:text-foreground dark:[&>[data-slot=bubble-content]:is(button,a):hover]:bg-muted/50",
+        destructive:
+          "*:data-[slot=bubble-content]:bg-destructive/10 *:data-[slot=bubble-content]:text-destructive dark:*:data-[slot=bubble-content]:bg-destructive/20 [&>[data-slot=bubble-content]:is(button,a):hover]:bg-destructive/20 dark:[&>[data-slot=bubble-content]:is(button,a):hover]:bg-destructive/30",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+    },
+  }
+)
+
+function Bubble({
+  variant = "default",
+  align = "start",
+  className,
+  ...props
+}: React.ComponentProps<"div"> &
+  VariantProps<typeof bubbleVariants> & {
+    align?: "start" | "end"
+  }) {
+  return (
+    <div
+      data-slot="bubble"
+      data-variant={variant}
+      data-align={align}
+      className={cn(bubbleVariants({ variant }), className)}
+      {...props}
+    />
+  )
+}
+
+function BubbleContent({
+  asChild = false,
+  className,
+  ...props
+}: React.ComponentProps<"div"> & {
+  asChild?: boolean
+}) {
+  const Comp = asChild ? Slot.Root : "div"
+
+  return (
+    <Comp
+      data-slot="bubble-content"
+      className={cn(
+        "w-fit max-w-full min-w-0 overflow-hidden rounded-xl border border-transparent px-3 py-2 text-sm leading-relaxed wrap-break-word group-data-[align=end]/bubble:self-end [button]:text-left [button,a]:transition-colors [button,a]:outline-none [button,a]:focus-visible:border-ring [button,a]:focus-visible:ring-3 [button,a]:focus-visible:ring-ring/50",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+const bubbleReactionsVariants = cva(
+  "absolute z-10 flex w-fit shrink-0 items-center justify-center gap-1 rounded-full bg-muted px-1.5 py-0.5 text-sm ring-3 ring-card has-[button]:p-0",
+  {
+    variants: {
+      side: {
+        top: "top-0 -translate-y-3/4",
+        bottom: "bottom-0 translate-y-3/4",
+      },
+      align: {
+        start: "left-3",
+        end: "right-3",
+      },
+    },
+    defaultVariants: {
+      side: "bottom",
+      align: "end",
+    },
+  }
+)
+
+function BubbleReactions({
+  side = "bottom",
+  align = "end",
+  className,
+  ...props
+}: React.ComponentProps<"div"> & {
+  align?: "start" | "end"
+  side?: "top" | "bottom"
+}) {
+  return (
+    <div
+      data-slot="bubble-reactions"
+      data-align={align}
+      data-side={side}
+      className={cn(bubbleReactionsVariants({ side, align }), className)}
+      {...props}
+    />
+  )
+}
+
+export { BubbleGroup, Bubble, BubbleContent, BubbleReactions }

frontend/src/components/ui/button-group.tsx

@@ -0,0 +1,83 @@
+import { cva, type VariantProps } from "class-variance-authority"
+import { Slot } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { Separator } from "@/components/ui/separator"
+
+const buttonGroupVariants = cva(
+  "group/button-group flex w-fit items-stretch *:focus-visible:relative *:focus-visible:z-10 has-[>[data-slot=button-group]]:gap-2 has-[select[aria-hidden=true]:last-child]:[&>[data-slot=select-trigger]:last-of-type]:rounded-r-lg [&>[data-slot=select-trigger]:not([class*='w-'])]:w-fit [&>input]:flex-1",
+  {
+    variants: {
+      orientation: {
+        horizontal:
+          "[&>*:not(:first-child)]:rounded-l-none [&>*:not(:first-child)]:border-l-0 [&>*:not(:last-child)]:rounded-r-none [&>[data-slot]:not(:has(~[data-slot]))]:rounded-r-lg!",
+        vertical:
+          "flex-col [&>*:not(:first-child)]:rounded-t-none [&>*:not(:first-child)]:border-t-0 [&>*:not(:last-child)]:rounded-b-none [&>[data-slot]:not(:has(~[data-slot]))]:rounded-b-lg!",
+      },
+    },
+    defaultVariants: {
+      orientation: "horizontal",
+    },
+  }
+)
+
+function ButtonGroup({
+  className,
+  orientation,
+  ...props
+}: React.ComponentProps<"div"> & VariantProps<typeof buttonGroupVariants>) {
+  return (
+    <div
+      role="group"
+      data-slot="button-group"
+      data-orientation={orientation}
+      className={cn(buttonGroupVariants({ orientation }), className)}
+      {...props}
+    />
+  )
+}
+
+function ButtonGroupText({
+  className,
+  asChild = false,
+  ...props
+}: React.ComponentProps<"div"> & {
+  asChild?: boolean
+}) {
+  const Comp = asChild ? Slot.Root : "div"
+
+  return (
+    <Comp
+      className={cn(
+        "flex items-center gap-2 rounded-lg border bg-muted px-2.5 text-sm font-medium [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function ButtonGroupSeparator({
+  className,
+  orientation = "vertical",
+  ...props
+}: React.ComponentProps<typeof Separator>) {
+  return (
+    <Separator
+      data-slot="button-group-separator"
+      orientation={orientation}
+      className={cn(
+        "relative self-stretch bg-input data-horizontal:mx-px data-horizontal:w-auto data-vertical:my-px data-vertical:h-auto",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  ButtonGroup,
+  ButtonGroupSeparator,
+  ButtonGroupText,
+  buttonGroupVariants,
+}

frontend/src/components/ui/button.tsx

@@ -0,0 +1,67 @@
+import * as React from "react"
+import { cva, type VariantProps } from "class-variance-authority"
+import { Slot } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+const buttonVariants = cva(
+  "group/button inline-flex shrink-0 items-center justify-center rounded-lg border border-transparent bg-clip-padding text-sm font-medium whitespace-nowrap transition-all outline-none select-none focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 active:not-aria-[haspopup]:translate-y-px disabled:pointer-events-none disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20 dark:aria-invalid:border-destructive/50 dark:aria-invalid:ring-destructive/40 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+  {
+    variants: {
+      variant: {
+        default: "bg-primary text-primary-foreground hover:bg-primary/80",
+        outline:
+          "border-border bg-background hover:bg-muted hover:text-foreground aria-expanded:bg-muted aria-expanded:text-foreground dark:border-input dark:bg-input/30 dark:hover:bg-input/50",
+        secondary:
+          "bg-secondary text-secondary-foreground hover:bg-[color-mix(in_oklch,var(--secondary),var(--foreground)_5%)] aria-expanded:bg-secondary aria-expanded:text-secondary-foreground",
+        ghost:
+          "hover:bg-muted hover:text-foreground aria-expanded:bg-muted aria-expanded:text-foreground dark:hover:bg-muted/50",
+        destructive:
+          "bg-destructive/10 text-destructive hover:bg-destructive/20 focus-visible:border-destructive/40 focus-visible:ring-destructive/20 dark:bg-destructive/20 dark:hover:bg-destructive/30 dark:focus-visible:ring-destructive/40",
+        link: "text-primary underline-offset-4 hover:underline",
+      },
+      size: {
+        default:
+          "h-8 gap-1.5 px-2.5 has-data-[icon=inline-end]:pr-2 has-data-[icon=inline-start]:pl-2",
+        xs: "h-6 gap-1 rounded-[min(var(--radius-md),10px)] px-2 text-xs in-data-[slot=button-group]:rounded-lg has-data-[icon=inline-end]:pr-1.5 has-data-[icon=inline-start]:pl-1.5 [&_svg:not([class*='size-'])]:size-3",
+        sm: "h-7 gap-1 rounded-[min(var(--radius-md),12px)] px-2.5 text-[0.8rem] in-data-[slot=button-group]:rounded-lg has-data-[icon=inline-end]:pr-1.5 has-data-[icon=inline-start]:pl-1.5 [&_svg:not([class*='size-'])]:size-3.5",
+        lg: "h-9 gap-1.5 px-2.5 has-data-[icon=inline-end]:pr-2 has-data-[icon=inline-start]:pl-2",
+        icon: "size-8",
+        "icon-xs":
+          "size-6 rounded-[min(var(--radius-md),10px)] in-data-[slot=button-group]:rounded-lg [&_svg:not([class*='size-'])]:size-3",
+        "icon-sm":
+          "size-7 rounded-[min(var(--radius-md),12px)] in-data-[slot=button-group]:rounded-lg",
+        "icon-lg": "size-9",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+      size: "default",
+    },
+  }
+)
+
+function Button({
+  className,
+  variant = "default",
+  size = "default",
+  asChild = false,
+  ...props
+}: React.ComponentProps<"button"> &
+  VariantProps<typeof buttonVariants> & {
+    asChild?: boolean
+  }) {
+  const Comp = asChild ? Slot.Root : "button"
+
+  return (
+    <Comp
+      data-slot="button"
+      data-variant={variant}
+      data-size={size}
+      className={cn(buttonVariants({ variant, size, className }))}
+      {...props}
+    />
+  )
+}
+
+export { Button, buttonVariants }

frontend/src/components/ui/calendar.tsx

@@ -0,0 +1,222 @@
+"use client"
+
+import * as React from "react"
+import {
+  DayPicker,
+  getDefaultClassNames,
+  type DayButton,
+  type Locale,
+} from "react-day-picker"
+
+import { cn } from "@/lib/utils"
+import { Button, buttonVariants } from "@/components/ui/button"
+import { ChevronLeftIcon, ChevronRightIcon, ChevronDownIcon } from "lucide-react"
+
+function Calendar({
+  className,
+  classNames,
+  showOutsideDays = true,
+  captionLayout = "label",
+  buttonVariant = "ghost",
+  locale,
+  formatters,
+  components,
+  ...props
+}: React.ComponentProps<typeof DayPicker> & {
+  buttonVariant?: React.ComponentProps<typeof Button>["variant"]
+}) {
+  const defaultClassNames = getDefaultClassNames()
+
+  return (
+    <DayPicker
+      showOutsideDays={showOutsideDays}
+      className={cn(
+        "group/calendar bg-background p-2 [--cell-radius:var(--radius-md)] [--cell-size:--spacing(7)] in-data-[slot=card-content]:bg-transparent in-data-[slot=popover-content]:bg-transparent",
+        String.raw`rtl:**:[.rdp-button\_next>svg]:rotate-180`,
+        String.raw`rtl:**:[.rdp-button\_previous>svg]:rotate-180`,
+        className
+      )}
+      captionLayout={captionLayout}
+      locale={locale}
+      formatters={{
+        formatMonthDropdown: (date) =>
+          date.toLocaleString(locale?.code, { month: "short" }),
+        ...formatters,
+      }}
+      classNames={{
+        root: cn("w-fit", defaultClassNames.root),
+        months: cn(
+          "relative flex flex-col gap-4 md:flex-row",
+          defaultClassNames.months
+        ),
+        month: cn("flex w-full flex-col gap-4", defaultClassNames.month),
+        nav: cn(
+          "absolute inset-x-0 top-0 flex w-full items-center justify-between gap-1",
+          defaultClassNames.nav
+        ),
+        button_previous: cn(
+          buttonVariants({ variant: buttonVariant }),
+          "size-(--cell-size) p-0 select-none aria-disabled:opacity-50",
+          defaultClassNames.button_previous
+        ),
+        button_next: cn(
+          buttonVariants({ variant: buttonVariant }),
+          "size-(--cell-size) p-0 select-none aria-disabled:opacity-50",
+          defaultClassNames.button_next
+        ),
+        month_caption: cn(
+          "flex h-(--cell-size) w-full items-center justify-center px-(--cell-size)",
+          defaultClassNames.month_caption
+        ),
+        dropdowns: cn(
+          "flex h-(--cell-size) w-full items-center justify-center gap-1.5 text-sm font-medium",
+          defaultClassNames.dropdowns
+        ),
+        dropdown_root: cn(
+          "relative rounded-(--cell-radius)",
+          defaultClassNames.dropdown_root
+        ),
+        dropdown: cn(
+          "absolute inset-0 bg-popover opacity-0",
+          defaultClassNames.dropdown
+        ),
+        caption_label: cn(
+          "font-medium select-none",
+          captionLayout === "label"
+            ? "text-sm"
+            : "flex items-center gap-1 rounded-(--cell-radius) text-sm [&>svg]:size-3.5 [&>svg]:text-muted-foreground",
+          defaultClassNames.caption_label
+        ),
+        month_grid: cn("w-full border-collapse", defaultClassNames.month_grid),
+        weekdays: cn("flex", defaultClassNames.weekdays),
+        weekday: cn(
+          "flex-1 rounded-(--cell-radius) text-[0.8rem] font-normal text-muted-foreground select-none",
+          defaultClassNames.weekday
+        ),
+        week: cn("mt-2 flex w-full", defaultClassNames.week),
+        week_number_header: cn(
+          "w-(--cell-size) select-none",
+          defaultClassNames.week_number_header
+        ),
+        week_number: cn(
+          "text-[0.8rem] text-muted-foreground select-none",
+          defaultClassNames.week_number
+        ),
+        day: cn(
+          "group/day relative aspect-square h-full w-full rounded-(--cell-radius) p-0 text-center select-none [&:last-child[data-selected=true]_button]:rounded-r-(--cell-radius)",
+          props.showWeekNumber
+            ? "[&:nth-child(2)[data-selected=true]_button]:rounded-l-(--cell-radius)"
+            : "[&:first-child[data-selected=true]_button]:rounded-l-(--cell-radius)",
+          defaultClassNames.day
+        ),
+        range_start: cn(
+          "relative isolate z-0 rounded-l-(--cell-radius) bg-muted after:absolute after:inset-y-0 after:right-0 after:w-4 after:bg-muted",
+          defaultClassNames.range_start
+        ),
+        range_middle: cn("rounded-none", defaultClassNames.range_middle),
+        range_end: cn(
+          "relative isolate z-0 rounded-r-(--cell-radius) bg-muted after:absolute after:inset-y-0 after:left-0 after:w-4 after:bg-muted",
+          defaultClassNames.range_end
+        ),
+        today: cn(
+          "rounded-(--cell-radius) bg-muted text-foreground data-[selected=true]:rounded-none",
+          defaultClassNames.today
+        ),
+        outside: cn(
+          "text-muted-foreground aria-selected:text-muted-foreground",
+          defaultClassNames.outside
+        ),
+        disabled: cn(
+          "text-muted-foreground opacity-50",
+          defaultClassNames.disabled
+        ),
+        hidden: cn("invisible", defaultClassNames.hidden),
+        ...classNames,
+      }}
+      components={{
+        Root: ({ className, rootRef, ...props }) => {
+          return (
+            <div
+              data-slot="calendar"
+              ref={rootRef}
+              className={cn(className)}
+              {...props}
+            />
+          )
+        },
+        Chevron: ({ className, orientation, ...props }) => {
+          if (orientation === "left") {
+            return (
+              <ChevronLeftIcon className={cn("size-4", className)} {...props} />
+            )
+          }
+
+          if (orientation === "right") {
+            return (
+              <ChevronRightIcon className={cn("size-4", className)} {...props} />
+            )
+          }
+
+          return (
+            <ChevronDownIcon className={cn("size-4", className)} {...props} />
+          )
+        },
+        DayButton: ({ ...props }) => (
+          <CalendarDayButton locale={locale} {...props} />
+        ),
+        WeekNumber: ({ children, ...props }) => {
+          return (
+            <td {...props}>
+              <div className="flex size-(--cell-size) items-center justify-center text-center">
+                {children}
+              </div>
+            </td>
+          )
+        },
+        ...components,
+      }}
+      {...props}
+    />
+  )
+}
+
+function CalendarDayButton({
+  className,
+  day,
+  modifiers,
+  locale,
+  ...props
+}: React.ComponentProps<typeof DayButton> & { locale?: Partial<Locale> }) {
+  const defaultClassNames = getDefaultClassNames()
+
+  const ref = React.useRef<HTMLButtonElement>(null)
+  React.useEffect(() => {
+    if (modifiers.focused) ref.current?.focus()
+  }, [modifiers.focused])
+
+  return (
+    <Button
+      ref={ref}
+      variant="ghost"
+      size="icon"
+      data-day={day.date.toLocaleDateString(locale?.code)}
+      data-selected-single={
+        modifiers.selected &&
+        !modifiers.range_start &&
+        !modifiers.range_end &&
+        !modifiers.range_middle
+      }
+      data-range-start={modifiers.range_start}
+      data-range-end={modifiers.range_end}
+      data-range-middle={modifiers.range_middle}
+      className={cn(
+        "relative isolate z-10 flex aspect-square size-auto w-full min-w-(--cell-size) flex-col gap-1 border-0 leading-none font-normal group-data-[focused=true]/day:relative group-data-[focused=true]/day:z-10 group-data-[focused=true]/day:border-ring group-data-[focused=true]/day:ring-[3px] group-data-[focused=true]/day:ring-ring/50 data-[range-end=true]:rounded-(--cell-radius) data-[range-end=true]:rounded-r-(--cell-radius) data-[range-end=true]:bg-primary data-[range-end=true]:text-primary-foreground data-[range-middle=true]:rounded-none data-[range-middle=true]:bg-muted data-[range-middle=true]:text-foreground data-[range-start=true]:rounded-(--cell-radius) data-[range-start=true]:rounded-l-(--cell-radius) data-[range-start=true]:bg-primary data-[range-start=true]:text-primary-foreground data-[selected-single=true]:bg-primary data-[selected-single=true]:text-primary-foreground dark:hover:text-foreground [&>span]:text-xs [&>span]:opacity-70",
+        defaultClassNames.day,
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Calendar, CalendarDayButton }

frontend/src/components/ui/card.tsx

@@ -0,0 +1,103 @@
+import * as React from "react"
+
+import { cn } from "@/lib/utils"
+
+function Card({
+  className,
+  size = "default",
+  ...props
+}: React.ComponentProps<"div"> & { size?: "default" | "sm" }) {
+  return (
+    <div
+      data-slot="card"
+      data-size={size}
+      className={cn(
+        "group/card flex flex-col gap-(--card-spacing) overflow-hidden rounded-xl bg-card py-(--card-spacing) text-sm text-card-foreground ring-1 ring-foreground/10 [--card-spacing:--spacing(4)] has-data-[slot=card-footer]:pb-0 has-[>img:first-child]:pt-0 data-[size=sm]:[--card-spacing:--spacing(3)] data-[size=sm]:has-data-[slot=card-footer]:pb-0 *:[img:first-child]:rounded-t-xl *:[img:last-child]:rounded-b-xl",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function CardHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-header"
+      className={cn(
+        "group/card-header @container/card-header grid auto-rows-min items-start gap-1 rounded-t-xl px-(--card-spacing) has-data-[slot=card-action]:grid-cols-[1fr_auto] has-data-[slot=card-description]:grid-rows-[auto_auto] [.border-b]:pb-(--card-spacing)",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function CardTitle({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-title"
+      className={cn(
+        "font-heading text-base leading-snug font-medium group-data-[size=sm]/card:text-sm",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function CardDescription({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-description"
+      className={cn("text-sm text-muted-foreground", className)}
+      {...props}
+    />
+  )
+}
+
+function CardAction({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-action"
+      className={cn(
+        "col-start-2 row-span-2 row-start-1 self-start justify-self-end",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function CardContent({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-content"
+      className={cn("px-(--card-spacing)", className)}
+      {...props}
+    />
+  )
+}
+
+function CardFooter({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="card-footer"
+      className={cn(
+        "flex items-center rounded-b-xl border-t bg-muted/50 p-(--card-spacing)",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  Card,
+  CardHeader,
+  CardFooter,
+  CardTitle,
+  CardAction,
+  CardDescription,
+  CardContent,
+}

frontend/src/components/ui/carousel.tsx

@@ -0,0 +1,242 @@
+"use client"
+
+import * as React from "react"
+import useEmblaCarousel, {
+  type UseEmblaCarouselType,
+} from "embla-carousel-react"
+
+import { cn } from "@/lib/utils"
+import { Button } from "@/components/ui/button"
+import { ChevronLeftIcon, ChevronRightIcon } from "lucide-react"
+
+type CarouselApi = UseEmblaCarouselType[1]
+type UseCarouselParameters = Parameters<typeof useEmblaCarousel>
+type CarouselOptions = UseCarouselParameters[0]
+type CarouselPlugin = UseCarouselParameters[1]
+
+type CarouselProps = {
+  opts?: CarouselOptions
+  plugins?: CarouselPlugin
+  orientation?: "horizontal" | "vertical"
+  setApi?: (api: CarouselApi) => void
+}
+
+type CarouselContextProps = {
+  carouselRef: ReturnType<typeof useEmblaCarousel>[0]
+  api: ReturnType<typeof useEmblaCarousel>[1]
+  scrollPrev: () => void
+  scrollNext: () => void
+  canScrollPrev: boolean
+  canScrollNext: boolean
+} & CarouselProps
+
+const CarouselContext = React.createContext<CarouselContextProps | null>(null)
+
+function useCarousel() {
+  const context = React.useContext(CarouselContext)
+
+  if (!context) {
+    throw new Error("useCarousel must be used within a <Carousel />")
+  }
+
+  return context
+}
+
+function Carousel({
+  orientation = "horizontal",
+  opts,
+  setApi,
+  plugins,
+  className,
+  children,
+  ...props
+}: React.ComponentProps<"div"> & CarouselProps) {
+  const [carouselRef, api] = useEmblaCarousel(
+    {
+      ...opts,
+      axis: orientation === "horizontal" ? "x" : "y",
+    },
+    plugins
+  )
+  const [canScrollPrev, setCanScrollPrev] = React.useState(false)
+  const [canScrollNext, setCanScrollNext] = React.useState(false)
+
+  const onSelect = React.useCallback((api: CarouselApi) => {
+    if (!api) return
+    setCanScrollPrev(api.canScrollPrev())
+    setCanScrollNext(api.canScrollNext())
+  }, [])
+
+  const scrollPrev = React.useCallback(() => {
+    api?.scrollPrev()
+  }, [api])
+
+  const scrollNext = React.useCallback(() => {
+    api?.scrollNext()
+  }, [api])
+
+  const handleKeyDown = React.useCallback(
+    (event: React.KeyboardEvent<HTMLDivElement>) => {
+      if (event.key === "ArrowLeft") {
+        event.preventDefault()
+        scrollPrev()
+      } else if (event.key === "ArrowRight") {
+        event.preventDefault()
+        scrollNext()
+      }
+    },
+    [scrollPrev, scrollNext]
+  )
+
+  React.useEffect(() => {
+    if (!api || !setApi) return
+    setApi(api)
+  }, [api, setApi])
+
+  React.useEffect(() => {
+    if (!api) return
+    onSelect(api)
+    api.on("reInit", onSelect)
+    api.on("select", onSelect)
+
+    return () => {
+      api?.off("select", onSelect)
+    }
+  }, [api, onSelect])
+
+  return (
+    <CarouselContext.Provider
+      value={{
+        carouselRef,
+        api: api,
+        opts,
+        orientation:
+          orientation || (opts?.axis === "y" ? "vertical" : "horizontal"),
+        scrollPrev,
+        scrollNext,
+        canScrollPrev,
+        canScrollNext,
+      }}
+    >
+      <div
+        onKeyDownCapture={handleKeyDown}
+        className={cn("relative", className)}
+        role="region"
+        aria-roledescription="carousel"
+        data-slot="carousel"
+        {...props}
+      >
+        {children}
+      </div>
+    </CarouselContext.Provider>
+  )
+}
+
+function CarouselContent({ className, ...props }: React.ComponentProps<"div">) {
+  const { carouselRef, orientation } = useCarousel()
+
+  return (
+    <div
+      ref={carouselRef}
+      className="overflow-hidden"
+      data-slot="carousel-content"
+    >
+      <div
+        className={cn(
+          "flex",
+          orientation === "horizontal" ? "-ml-4" : "-mt-4 flex-col",
+          className
+        )}
+        {...props}
+      />
+    </div>
+  )
+}
+
+function CarouselItem({ className, ...props }: React.ComponentProps<"div">) {
+  const { orientation } = useCarousel()
+
+  return (
+    <div
+      role="group"
+      aria-roledescription="slide"
+      data-slot="carousel-item"
+      className={cn(
+        "min-w-0 shrink-0 grow-0 basis-full",
+        orientation === "horizontal" ? "pl-4" : "pt-4",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function CarouselPrevious({
+  className,
+  variant = "outline",
+  size = "icon-sm",
+  ...props
+}: React.ComponentProps<typeof Button>) {
+  const { orientation, scrollPrev, canScrollPrev } = useCarousel()
+
+  return (
+    <Button
+      data-slot="carousel-previous"
+      variant={variant}
+      size={size}
+      className={cn(
+        "absolute touch-manipulation rounded-full",
+        orientation === "horizontal"
+          ? "inset-y-0 -left-12 my-auto"
+          : "-top-12 left-1/2 -translate-x-1/2 rotate-90",
+        className
+      )}
+      disabled={!canScrollPrev}
+      onClick={scrollPrev}
+      {...props}
+    >
+      <ChevronLeftIcon />
+      <span className="sr-only">Previous slide</span>
+    </Button>
+  )
+}
+
+function CarouselNext({
+  className,
+  variant = "outline",
+  size = "icon-sm",
+  ...props
+}: React.ComponentProps<typeof Button>) {
+  const { orientation, scrollNext, canScrollNext } = useCarousel()
+
+  return (
+    <Button
+      data-slot="carousel-next"
+      variant={variant}
+      size={size}
+      className={cn(
+        "absolute touch-manipulation rounded-full",
+        orientation === "horizontal"
+          ? "inset-y-0 -right-12 my-auto"
+          : "-bottom-12 left-1/2 -translate-x-1/2 rotate-90",
+        className
+      )}
+      disabled={!canScrollNext}
+      onClick={scrollNext}
+      {...props}
+    >
+      <ChevronRightIcon />
+      <span className="sr-only">Next slide</span>
+    </Button>
+  )
+}
+
+export {
+  type CarouselApi,
+  Carousel,
+  CarouselContent,
+  CarouselItem,
+  CarouselPrevious,
+  CarouselNext,
+  useCarousel,
+}

frontend/src/components/ui/chart.tsx

@@ -0,0 +1,373 @@
+"use client"
+
+import * as React from "react"
+import * as RechartsPrimitive from "recharts"
+import type { TooltipValueType } from "recharts"
+
+import { cn } from "@/lib/utils"
+
+// Format: { THEME_NAME: CSS_SELECTOR }
+const THEMES = { light: "", dark: ".dark" } as const
+
+const INITIAL_DIMENSION = { width: 320, height: 200 } as const
+type TooltipNameType = number | string
+
+export type ChartConfig = Record<
+  string,
+  {
+    label?: React.ReactNode
+    icon?: React.ComponentType
+  } & (
+    | { color?: string; theme?: never }
+    | { color?: never; theme: Record<keyof typeof THEMES, string> }
+  )
+>
+
+type ChartContextProps = {
+  config: ChartConfig
+}
+
+const ChartContext = React.createContext<ChartContextProps | null>(null)
+
+function useChart() {
+  const context = React.useContext(ChartContext)
+
+  if (!context) {
+    throw new Error("useChart must be used within a <ChartContainer />")
+  }
+
+  return context
+}
+
+function ChartContainer({
+  id,
+  className,
+  children,
+  config,
+  initialDimension = INITIAL_DIMENSION,
+  ...props
+}: React.ComponentProps<"div"> & {
+  config: ChartConfig
+  children: React.ComponentProps<
+    typeof RechartsPrimitive.ResponsiveContainer
+  >["children"]
+  initialDimension?: {
+    width: number
+    height: number
+  }
+}) {
+  const uniqueId = React.useId()
+  const chartId = `chart-${id ?? uniqueId.replace(/:/g, "")}`
+
+  return (
+    <ChartContext.Provider value={{ config }}>
+      <div
+        data-slot="chart"
+        data-chart={chartId}
+        className={cn(
+          "flex aspect-video justify-center text-xs [&_.recharts-cartesian-axis-tick_text]:fill-muted-foreground [&_.recharts-cartesian-grid_line[stroke='#ccc']]:stroke-border/50 [&_.recharts-curve.recharts-tooltip-cursor]:stroke-border [&_.recharts-dot[stroke='#fff']]:stroke-transparent [&_.recharts-layer]:outline-hidden [&_.recharts-polar-grid_[stroke='#ccc']]:stroke-border [&_.recharts-radial-bar-background-sector]:fill-muted [&_.recharts-rectangle.recharts-tooltip-cursor]:fill-muted [&_.recharts-reference-line_[stroke='#ccc']]:stroke-border [&_.recharts-sector]:outline-hidden [&_.recharts-sector[stroke='#fff']]:stroke-transparent [&_.recharts-surface]:outline-hidden",
+          className
+        )}
+        {...props}
+      >
+        <ChartStyle id={chartId} config={config} />
+        <RechartsPrimitive.ResponsiveContainer
+          initialDimension={initialDimension}
+        >
+          {children}
+        </RechartsPrimitive.ResponsiveContainer>
+      </div>
+    </ChartContext.Provider>
+  )
+}
+
+const ChartStyle = ({ id, config }: { id: string; config: ChartConfig }) => {
+  const colorConfig = Object.entries(config).filter(
+    ([, config]) => config.theme ?? config.color
+  )
+
+  if (!colorConfig.length) {
+    return null
+  }
+
+  return (
+    <style
+      dangerouslySetInnerHTML={{
+        __html: Object.entries(THEMES)
+          .map(
+            ([theme, prefix]) => `
+${prefix} [data-chart=${id}] {
+${colorConfig
+  .map(([key, itemConfig]) => {
+    const color =
+      itemConfig.theme?.[theme as keyof typeof itemConfig.theme] ??
+      itemConfig.color
+    return color ? `  --color-${key}: ${color};` : null
+  })
+  .join("\n")}
+}
+`
+          )
+          .join("\n"),
+      }}
+    />
+  )
+}
+
+const ChartTooltip = RechartsPrimitive.Tooltip
+
+function ChartTooltipContent({
+  active,
+  payload,
+  className,
+  indicator = "dot",
+  hideLabel = false,
+  hideIndicator = false,
+  label,
+  labelFormatter,
+  labelClassName,
+  formatter,
+  color,
+  nameKey,
+  labelKey,
+}: React.ComponentProps<typeof RechartsPrimitive.Tooltip> &
+  React.ComponentProps<"div"> & {
+    hideLabel?: boolean
+    hideIndicator?: boolean
+    indicator?: "line" | "dot" | "dashed"
+    nameKey?: string
+    labelKey?: string
+  } & Omit<
+    RechartsPrimitive.DefaultTooltipContentProps<
+      TooltipValueType,
+      TooltipNameType
+    >,
+    "accessibilityLayer"
+  >) {
+  const { config } = useChart()
+
+  const tooltipLabel = React.useMemo(() => {
+    if (hideLabel || !payload?.length) {
+      return null
+    }
+
+    const [item] = payload
+    const key = `${labelKey ?? item?.dataKey ?? item?.name ?? "value"}`
+    const itemConfig = getPayloadConfigFromPayload(config, item, key)
+    const value =
+      !labelKey && typeof label === "string"
+        ? (config[label]?.label ?? label)
+        : itemConfig?.label
+
+    if (labelFormatter) {
+      return (
+        <div className={cn("font-medium", labelClassName)}>
+          {labelFormatter(value, payload)}
+        </div>
+      )
+    }
+
+    if (!value) {
+      return null
+    }
+
+    return <div className={cn("font-medium", labelClassName)}>{value}</div>
+  }, [
+    label,
+    labelFormatter,
+    payload,
+    hideLabel,
+    labelClassName,
+    config,
+    labelKey,
+  ])
+
+  if (!active || !payload?.length) {
+    return null
+  }
+
+  const nestLabel = payload.length === 1 && indicator !== "dot"
+
+  return (
+    <div
+      className={cn(
+        "grid min-w-32 items-start gap-1.5 rounded-lg border border-border/50 bg-background px-2.5 py-1.5 text-xs shadow-xl",
+        className
+      )}
+    >
+      {!nestLabel ? tooltipLabel : null}
+      <div className="grid gap-1.5">
+        {payload
+          .filter((item) => item.type !== "none")
+          .map((item, index) => {
+            const key = `${nameKey ?? item.name ?? item.dataKey ?? "value"}`
+            const itemConfig = getPayloadConfigFromPayload(config, item, key)
+            const indicatorColor = color ?? item.payload?.fill ?? item.color
+
+            return (
+              <div
+                key={index}
+                className={cn(
+                  "flex w-full flex-wrap items-stretch gap-2 [&>svg]:h-2.5 [&>svg]:w-2.5 [&>svg]:text-muted-foreground",
+                  indicator === "dot" && "items-center"
+                )}
+              >
+                {formatter && item?.value !== undefined && item.name ? (
+                  formatter(item.value, item.name, item, index, item.payload)
+                ) : (
+                  <>
+                    {itemConfig?.icon ? (
+                      <itemConfig.icon />
+                    ) : (
+                      !hideIndicator && (
+                        <div
+                          className={cn(
+                            "shrink-0 rounded-[2px] border-(--color-border) bg-(--color-bg)",
+                            {
+                              "h-2.5 w-2.5": indicator === "dot",
+                              "w-1": indicator === "line",
+                              "w-0 border-[1.5px] border-dashed bg-transparent":
+                                indicator === "dashed",
+                              "my-0.5": nestLabel && indicator === "dashed",
+                            }
+                          )}
+                          style={
+                            {
+                              "--color-bg": indicatorColor,
+                              "--color-border": indicatorColor,
+                            } as React.CSSProperties
+                          }
+                        />
+                      )
+                    )}
+                    <div
+                      className={cn(
+                        "flex flex-1 justify-between leading-none",
+                        nestLabel ? "items-end" : "items-center"
+                      )}
+                    >
+                      <div className="grid gap-1.5">
+                        {nestLabel ? tooltipLabel : null}
+                        <span className="text-muted-foreground">
+                          {itemConfig?.label ?? item.name}
+                        </span>
+                      </div>
+                      {item.value != null && (
+                        <span className="font-mono font-medium text-foreground tabular-nums">
+                          {typeof item.value === "number"
+                            ? item.value.toLocaleString()
+                            : String(item.value)}
+                        </span>
+                      )}
+                    </div>
+                  </>
+                )}
+              </div>
+            )
+          })}
+      </div>
+    </div>
+  )
+}
+
+const ChartLegend = RechartsPrimitive.Legend
+
+function ChartLegendContent({
+  className,
+  hideIcon = false,
+  payload,
+  verticalAlign = "bottom",
+  nameKey,
+}: React.ComponentProps<"div"> & {
+  hideIcon?: boolean
+  nameKey?: string
+} & RechartsPrimitive.DefaultLegendContentProps) {
+  const { config } = useChart()
+
+  if (!payload?.length) {
+    return null
+  }
+
+  return (
+    <div
+      className={cn(
+        "flex items-center justify-center gap-4",
+        verticalAlign === "top" ? "pb-3" : "pt-3",
+        className
+      )}
+    >
+      {payload
+        .filter((item) => item.type !== "none")
+        .map((item, index) => {
+          const key = `${nameKey ?? item.dataKey ?? "value"}`
+          const itemConfig = getPayloadConfigFromPayload(config, item, key)
+
+          return (
+            <div
+              key={index}
+              className={cn(
+                "flex items-center gap-1.5 [&>svg]:h-3 [&>svg]:w-3 [&>svg]:text-muted-foreground"
+              )}
+            >
+              {itemConfig?.icon && !hideIcon ? (
+                <itemConfig.icon />
+              ) : (
+                <div
+                  className="h-2 w-2 shrink-0 rounded-[2px]"
+                  style={{
+                    backgroundColor: item.color,
+                  }}
+                />
+              )}
+              {itemConfig?.label}
+            </div>
+          )
+        })}
+    </div>
+  )
+}
+
+function getPayloadConfigFromPayload(
+  config: ChartConfig,
+  payload: unknown,
+  key: string
+) {
+  if (typeof payload !== "object" || payload === null) {
+    return undefined
+  }
+
+  const payloadPayload =
+    "payload" in payload &&
+    typeof payload.payload === "object" &&
+    payload.payload !== null
+      ? payload.payload
+      : undefined
+
+  let configLabelKey: string = key
+
+  if (
+    key in payload &&
+    typeof payload[key as keyof typeof payload] === "string"
+  ) {
+    configLabelKey = payload[key as keyof typeof payload] as string
+  } else if (
+    payloadPayload &&
+    key in payloadPayload &&
+    typeof payloadPayload[key as keyof typeof payloadPayload] === "string"
+  ) {
+    configLabelKey = payloadPayload[
+      key as keyof typeof payloadPayload
+    ] as string
+  }
+
+  return configLabelKey in config ? config[configLabelKey] : config[key]
+}
+
+export {
+  ChartContainer,
+  ChartTooltip,
+  ChartTooltipContent,
+  ChartLegend,
+  ChartLegendContent,
+  ChartStyle,
+}

frontend/src/components/ui/checkbox.tsx

@@ -0,0 +1,33 @@
+"use client"
+
+import * as React from "react"
+import { Checkbox as CheckboxPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { CheckIcon } from "lucide-react"
+
+function Checkbox({
+  className,
+  ...props
+}: React.ComponentProps<typeof CheckboxPrimitive.Root>) {
+  return (
+    <CheckboxPrimitive.Root
+      data-slot="checkbox"
+      className={cn(
+        "peer relative flex size-4 shrink-0 items-center justify-center rounded-[4px] border border-input transition-colors outline-none group-has-disabled/field:opacity-50 after:absolute after:-inset-x-3 after:-inset-y-2 focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 disabled:cursor-not-allowed disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20 aria-invalid:aria-checked:border-primary dark:bg-input/30 dark:aria-invalid:border-destructive/50 dark:aria-invalid:ring-destructive/40 data-checked:border-primary data-checked:bg-primary data-checked:text-primary-foreground dark:data-checked:bg-primary",
+        className
+      )}
+      {...props}
+    >
+      <CheckboxPrimitive.Indicator
+        data-slot="checkbox-indicator"
+        className="grid place-content-center text-current transition-none [&>svg]:size-3.5"
+      >
+        <CheckIcon
+        />
+      </CheckboxPrimitive.Indicator>
+    </CheckboxPrimitive.Root>
+  )
+}
+
+export { Checkbox }

frontend/src/components/ui/collapsible.tsx

@@ -0,0 +1,33 @@
+"use client"
+
+import { Collapsible as CollapsiblePrimitive } from "radix-ui"
+
+function Collapsible({
+  ...props
+}: React.ComponentProps<typeof CollapsiblePrimitive.Root>) {
+  return <CollapsiblePrimitive.Root data-slot="collapsible" {...props} />
+}
+
+function CollapsibleTrigger({
+  ...props
+}: React.ComponentProps<typeof CollapsiblePrimitive.CollapsibleTrigger>) {
+  return (
+    <CollapsiblePrimitive.CollapsibleTrigger
+      data-slot="collapsible-trigger"
+      {...props}
+    />
+  )
+}
+
+function CollapsibleContent({
+  ...props
+}: React.ComponentProps<typeof CollapsiblePrimitive.CollapsibleContent>) {
+  return (
+    <CollapsiblePrimitive.CollapsibleContent
+      data-slot="collapsible-content"
+      {...props}
+    />
+  )
+}
+
+export { Collapsible, CollapsibleTrigger, CollapsibleContent }

frontend/src/components/ui/combobox.tsx

@@ -0,0 +1,299 @@
+"use client"
+
+import * as React from "react"
+import { Combobox as ComboboxPrimitive } from "@base-ui/react"
+
+import { cn } from "@/lib/utils"
+import { Button } from "@/components/ui/button"
+import {
+  InputGroup,
+  InputGroupAddon,
+  InputGroupButton,
+  InputGroupInput,
+} from "@/components/ui/input-group"
+import { ChevronDownIcon, XIcon, CheckIcon } from "lucide-react"
+
+const Combobox = ComboboxPrimitive.Root
+
+function ComboboxValue({ ...props }: ComboboxPrimitive.Value.Props) {
+  return <ComboboxPrimitive.Value data-slot="combobox-value" {...props} />
+}
+
+function ComboboxTrigger({
+  className,
+  children,
+  ...props
+}: ComboboxPrimitive.Trigger.Props) {
+  return (
+    <ComboboxPrimitive.Trigger
+      data-slot="combobox-trigger"
+      className={cn("[&_svg:not([class*='size-'])]:size-4", className)}
+      {...props}
+    >
+      {children}
+      <ChevronDownIcon className="pointer-events-none size-4 text-muted-foreground" />
+    </ComboboxPrimitive.Trigger>
+  )
+}
+
+function ComboboxClear({ className, ...props }: ComboboxPrimitive.Clear.Props) {
+  return (
+    <ComboboxPrimitive.Clear
+      data-slot="combobox-clear"
+      render={<InputGroupButton variant="ghost" size="icon-xs" />}
+      className={cn(className)}
+      {...props}
+    >
+      <XIcon className="pointer-events-none" />
+    </ComboboxPrimitive.Clear>
+  )
+}
+
+function ComboboxInput({
+  className,
+  children,
+  disabled = false,
+  showTrigger = true,
+  showClear = false,
+  ...props
+}: ComboboxPrimitive.Input.Props & {
+  showTrigger?: boolean
+  showClear?: boolean
+}) {
+  return (
+    <InputGroup className={cn("w-auto", className)}>
+      <ComboboxPrimitive.Input
+        render={<InputGroupInput disabled={disabled} />}
+        {...props}
+      />
+      <InputGroupAddon align="inline-end">
+        {showTrigger && (
+          <InputGroupButton
+            size="icon-xs"
+            variant="ghost"
+            asChild
+            data-slot="input-group-button"
+            className="group-has-data-[slot=combobox-clear]/input-group:hidden data-pressed:bg-transparent"
+            disabled={disabled}
+          >
+            <ComboboxTrigger />
+          </InputGroupButton>
+        )}
+        {showClear && <ComboboxClear disabled={disabled} />}
+      </InputGroupAddon>
+      {children}
+    </InputGroup>
+  )
+}
+
+function ComboboxContent({
+  className,
+  side = "bottom",
+  sideOffset = 6,
+  align = "start",
+  alignOffset = 0,
+  anchor,
+  ...props
+}: ComboboxPrimitive.Popup.Props &
+  Pick<
+    ComboboxPrimitive.Positioner.Props,
+    "side" | "align" | "sideOffset" | "alignOffset" | "anchor"
+  >) {
+  return (
+    <ComboboxPrimitive.Portal>
+      <ComboboxPrimitive.Positioner
+        side={side}
+        sideOffset={sideOffset}
+        align={align}
+        alignOffset={alignOffset}
+        anchor={anchor}
+        className="isolate z-50"
+      >
+        <ComboboxPrimitive.Popup
+          data-slot="combobox-content"
+          data-chips={!!anchor}
+          className={cn("group/combobox-content relative max-h-(--available-height) w-(--anchor-width) max-w-(--available-width) min-w-[calc(var(--anchor-width)+--spacing(7))] origin-(--transform-origin) overflow-hidden rounded-lg bg-popover text-popover-foreground shadow-md ring-1 ring-foreground/10 duration-100 data-[chips=true]:min-w-(--anchor-width) data-[side=bottom]:slide-in-from-top-2 data-[side=inline-end]:slide-in-from-left-2 data-[side=inline-start]:slide-in-from-right-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 *:data-[slot=input-group]:m-1 *:data-[slot=input-group]:mb-0 *:data-[slot=input-group]:h-8 *:data-[slot=input-group]:border-input/30 *:data-[slot=input-group]:bg-input/30 *:data-[slot=input-group]:shadow-none data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95", className )}
+          {...props}
+        />
+      </ComboboxPrimitive.Positioner>
+    </ComboboxPrimitive.Portal>
+  )
+}
+
+function ComboboxList({ className, ...props }: ComboboxPrimitive.List.Props) {
+  return (
+    <ComboboxPrimitive.List
+      data-slot="combobox-list"
+      className={cn(
+        "no-scrollbar max-h-[min(calc(--spacing(72)---spacing(9)),calc(var(--available-height)---spacing(9)))] scroll-py-1 overflow-y-auto overscroll-contain p-1 data-empty:p-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function ComboboxItem({
+  className,
+  children,
+  ...props
+}: ComboboxPrimitive.Item.Props) {
+  return (
+    <ComboboxPrimitive.Item
+      data-slot="combobox-item"
+      className={cn(
+        "relative flex w-full cursor-default items-center gap-2 rounded-md py-1 pr-8 pl-1.5 text-sm outline-hidden select-none data-highlighted:bg-accent data-highlighted:text-accent-foreground not-data-[variant=destructive]:data-highlighted:**:text-accent-foreground data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      {children}
+      <ComboboxPrimitive.ItemIndicator
+        render={
+          <span className="pointer-events-none absolute right-2 flex size-4 items-center justify-center" />
+        }
+      >
+        <CheckIcon className="pointer-events-none" />
+      </ComboboxPrimitive.ItemIndicator>
+    </ComboboxPrimitive.Item>
+  )
+}
+
+function ComboboxGroup({ className, ...props }: ComboboxPrimitive.Group.Props) {
+  return (
+    <ComboboxPrimitive.Group
+      data-slot="combobox-group"
+      className={cn(className)}
+      {...props}
+    />
+  )
+}
+
+function ComboboxLabel({
+  className,
+  ...props
+}: ComboboxPrimitive.GroupLabel.Props) {
+  return (
+    <ComboboxPrimitive.GroupLabel
+      data-slot="combobox-label"
+      className={cn("px-2 py-1.5 text-xs text-muted-foreground", className)}
+      {...props}
+    />
+  )
+}
+
+function ComboboxCollection({ ...props }: ComboboxPrimitive.Collection.Props) {
+  return (
+    <ComboboxPrimitive.Collection data-slot="combobox-collection" {...props} />
+  )
+}
+
+function ComboboxEmpty({ className, ...props }: ComboboxPrimitive.Empty.Props) {
+  return (
+    <ComboboxPrimitive.Empty
+      data-slot="combobox-empty"
+      className={cn(
+        "hidden w-full justify-center py-2 text-center text-sm text-muted-foreground group-data-empty/combobox-content:flex",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function ComboboxSeparator({
+  className,
+  ...props
+}: ComboboxPrimitive.Separator.Props) {
+  return (
+    <ComboboxPrimitive.Separator
+      data-slot="combobox-separator"
+      className={cn("-mx-1 my-1 h-px bg-border", className)}
+      {...props}
+    />
+  )
+}
+
+function ComboboxChips({
+  className,
+  ...props
+}: React.ComponentPropsWithRef<typeof ComboboxPrimitive.Chips> &
+  ComboboxPrimitive.Chips.Props) {
+  return (
+    <ComboboxPrimitive.Chips
+      data-slot="combobox-chips"
+      className={cn(
+        "flex min-h-8 flex-wrap items-center gap-1 rounded-lg border border-input bg-transparent bg-clip-padding px-2.5 py-1 text-sm transition-colors focus-within:border-ring focus-within:ring-3 focus-within:ring-ring/50 has-aria-invalid:border-destructive has-aria-invalid:ring-3 has-aria-invalid:ring-destructive/20 has-data-[slot=combobox-chip]:px-1 dark:bg-input/30 dark:has-aria-invalid:border-destructive/50 dark:has-aria-invalid:ring-destructive/40",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function ComboboxChip({
+  className,
+  children,
+  showRemove = true,
+  ...props
+}: ComboboxPrimitive.Chip.Props & {
+  showRemove?: boolean
+}) {
+  return (
+    <ComboboxPrimitive.Chip
+      data-slot="combobox-chip"
+      className={cn(
+        "flex h-[calc(--spacing(5.25))] w-fit items-center justify-center gap-1 rounded-sm bg-muted px-1.5 text-xs font-medium whitespace-nowrap text-foreground has-disabled:pointer-events-none has-disabled:cursor-not-allowed has-disabled:opacity-50 has-data-[slot=combobox-chip-remove]:pr-0",
+        className
+      )}
+      {...props}
+    >
+      {children}
+      {showRemove && (
+        <ComboboxPrimitive.ChipRemove
+          render={<Button variant="ghost" size="icon-xs" />}
+          className="-ml-1 opacity-50 hover:opacity-100"
+          data-slot="combobox-chip-remove"
+        >
+          <XIcon className="pointer-events-none" />
+        </ComboboxPrimitive.ChipRemove>
+      )}
+    </ComboboxPrimitive.Chip>
+  )
+}
+
+function ComboboxChipsInput({
+  className,
+  ...props
+}: ComboboxPrimitive.Input.Props) {
+  return (
+    <ComboboxPrimitive.Input
+      data-slot="combobox-chip-input"
+      className={cn("min-w-16 flex-1 outline-none", className)}
+      {...props}
+    />
+  )
+}
+
+function useComboboxAnchor() {
+  return React.useRef<HTMLDivElement | null>(null)
+}
+
+export {
+  Combobox,
+  ComboboxInput,
+  ComboboxContent,
+  ComboboxList,
+  ComboboxItem,
+  ComboboxGroup,
+  ComboboxLabel,
+  ComboboxCollection,
+  ComboboxEmpty,
+  ComboboxSeparator,
+  ComboboxChips,
+  ComboboxChip,
+  ComboboxChipsInput,
+  ComboboxTrigger,
+  ComboboxValue,
+  useComboboxAnchor,
+}

frontend/src/components/ui/command.tsx

@@ -0,0 +1,195 @@
+"use client"
+
+import * as React from "react"
+import { Command as CommandPrimitive } from "cmdk"
+
+import { cn } from "@/lib/utils"
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogHeader,
+  DialogTitle,
+} from "@/components/ui/dialog"
+import {
+  InputGroup,
+  InputGroupAddon,
+} from "@/components/ui/input-group"
+import { SearchIcon, CheckIcon } from "lucide-react"
+
+function Command({
+  className,
+  ...props
+}: React.ComponentProps<typeof CommandPrimitive>) {
+  return (
+    <CommandPrimitive
+      data-slot="command"
+      className={cn(
+        "flex size-full flex-col overflow-hidden rounded-xl! bg-popover p-1 text-popover-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function CommandDialog({
+  title = "Command Palette",
+  description = "Search for a command to run...",
+  children,
+  className,
+  showCloseButton = false,
+  ...props
+}: React.ComponentProps<typeof Dialog> & {
+  title?: string
+  description?: string
+  className?: string
+  showCloseButton?: boolean
+}) {
+  return (
+    <Dialog {...props}>
+      <DialogHeader className="sr-only">
+        <DialogTitle>{title}</DialogTitle>
+        <DialogDescription>{description}</DialogDescription>
+      </DialogHeader>
+      <DialogContent
+        className={cn(
+          "top-1/3 translate-y-0 overflow-hidden rounded-xl! p-0",
+          className
+        )}
+        showCloseButton={showCloseButton}
+      >
+        {children}
+      </DialogContent>
+    </Dialog>
+  )
+}
+
+function CommandInput({
+  className,
+  ...props
+}: React.ComponentProps<typeof CommandPrimitive.Input>) {
+  return (
+    <div data-slot="command-input-wrapper" className="p-1 pb-0">
+      <InputGroup className="h-8! rounded-lg! border-input/30 bg-input/30 shadow-none! *:data-[slot=input-group-addon]:pl-2!">
+        <CommandPrimitive.Input
+          data-slot="command-input"
+          className={cn(
+            "w-full text-sm outline-hidden disabled:cursor-not-allowed disabled:opacity-50",
+            className
+          )}
+          {...props}
+        />
+        <InputGroupAddon>
+          <SearchIcon className="size-4 shrink-0 opacity-50" />
+        </InputGroupAddon>
+      </InputGroup>
+    </div>
+  )
+}
+
+function CommandList({
+  className,
+  ...props
+}: React.ComponentProps<typeof CommandPrimitive.List>) {
+  return (
+    <CommandPrimitive.List
+      data-slot="command-list"
+      className={cn(
+        "no-scrollbar max-h-72 scroll-py-1 overflow-x-hidden overflow-y-auto outline-none",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function CommandEmpty({
+  className,
+  ...props
+}: React.ComponentProps<typeof CommandPrimitive.Empty>) {
+  return (
+    <CommandPrimitive.Empty
+      data-slot="command-empty"
+      className={cn("py-6 text-center text-sm", className)}
+      {...props}
+    />
+  )
+}
+
+function CommandGroup({
+  className,
+  ...props
+}: React.ComponentProps<typeof CommandPrimitive.Group>) {
+  return (
+    <CommandPrimitive.Group
+      data-slot="command-group"
+      className={cn(
+        "overflow-hidden p-1 text-foreground **:[[cmdk-group-heading]]:px-2 **:[[cmdk-group-heading]]:py-1.5 **:[[cmdk-group-heading]]:text-xs **:[[cmdk-group-heading]]:font-medium **:[[cmdk-group-heading]]:text-muted-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function CommandSeparator({
+  className,
+  ...props
+}: React.ComponentProps<typeof CommandPrimitive.Separator>) {
+  return (
+    <CommandPrimitive.Separator
+      data-slot="command-separator"
+      className={cn("-mx-1 h-px bg-border", className)}
+      {...props}
+    />
+  )
+}
+
+function CommandItem({
+  className,
+  children,
+  ...props
+}: React.ComponentProps<typeof CommandPrimitive.Item>) {
+  return (
+    <CommandPrimitive.Item
+      data-slot="command-item"
+      className={cn(
+        "group/command-item relative flex cursor-default items-center gap-2 rounded-sm px-2 py-1.5 text-sm outline-hidden select-none in-data-[slot=dialog-content]:rounded-lg! data-[disabled=true]:pointer-events-none data-[disabled=true]:opacity-50 data-selected:bg-muted data-selected:text-foreground [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4 data-selected:*:[svg]:text-foreground",
+        className
+      )}
+      {...props}
+    >
+      {children}
+      <CheckIcon className="ml-auto opacity-0 group-has-data-[slot=command-shortcut]/command-item:hidden group-data-[checked=true]/command-item:opacity-100" />
+    </CommandPrimitive.Item>
+  )
+}
+
+function CommandShortcut({
+  className,
+  ...props
+}: React.ComponentProps<"span">) {
+  return (
+    <span
+      data-slot="command-shortcut"
+      className={cn(
+        "ml-auto text-xs tracking-widest text-muted-foreground group-data-selected/command-item:text-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  Command,
+  CommandDialog,
+  CommandInput,
+  CommandList,
+  CommandEmpty,
+  CommandGroup,
+  CommandItem,
+  CommandShortcut,
+  CommandSeparator,
+}

frontend/src/components/ui/context-menu.tsx

@@ -0,0 +1,263 @@
+"use client"
+
+import * as React from "react"
+import { ContextMenu as ContextMenuPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { ChevronRightIcon, CheckIcon } from "lucide-react"
+
+function ContextMenu({
+  ...props
+}: React.ComponentProps<typeof ContextMenuPrimitive.Root>) {
+  return <ContextMenuPrimitive.Root data-slot="context-menu" {...props} />
+}
+
+function ContextMenuTrigger({
+  className,
+  ...props
+}: React.ComponentProps<typeof ContextMenuPrimitive.Trigger>) {
+  return (
+    <ContextMenuPrimitive.Trigger
+      data-slot="context-menu-trigger"
+      className={cn("select-none", className)}
+      {...props}
+    />
+  )
+}
+
+function ContextMenuGroup({
+  ...props
+}: React.ComponentProps<typeof ContextMenuPrimitive.Group>) {
+  return (
+    <ContextMenuPrimitive.Group data-slot="context-menu-group" {...props} />
+  )
+}
+
+function ContextMenuPortal({
+  ...props
+}: React.ComponentProps<typeof ContextMenuPrimitive.Portal>) {
+  return (
+    <ContextMenuPrimitive.Portal data-slot="context-menu-portal" {...props} />
+  )
+}
+
+function ContextMenuSub({
+  ...props
+}: React.ComponentProps<typeof ContextMenuPrimitive.Sub>) {
+  return <ContextMenuPrimitive.Sub data-slot="context-menu-sub" {...props} />
+}
+
+function ContextMenuRadioGroup({
+  ...props
+}: React.ComponentProps<typeof ContextMenuPrimitive.RadioGroup>) {
+  return (
+    <ContextMenuPrimitive.RadioGroup
+      data-slot="context-menu-radio-group"
+      {...props}
+    />
+  )
+}
+
+function ContextMenuContent({
+  className,
+  ...props
+}: React.ComponentProps<typeof ContextMenuPrimitive.Content> & {
+  side?: "top" | "right" | "bottom" | "left"
+}) {
+  return (
+    <ContextMenuPrimitive.Portal>
+      <ContextMenuPrimitive.Content
+        data-slot="context-menu-content"
+        className={cn("z-50 max-h-(--radix-context-menu-content-available-height) min-w-36 origin-(--radix-context-menu-content-transform-origin) overflow-x-hidden overflow-y-auto rounded-lg bg-popover p-1 text-popover-foreground shadow-md ring-1 ring-foreground/10 duration-100 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95", className )}
+        {...props}
+      />
+    </ContextMenuPrimitive.Portal>
+  )
+}
+
+function ContextMenuItem({
+  className,
+  inset,
+  variant = "default",
+  ...props
+}: React.ComponentProps<typeof ContextMenuPrimitive.Item> & {
+  inset?: boolean
+  variant?: "default" | "destructive"
+}) {
+  return (
+    <ContextMenuPrimitive.Item
+      data-slot="context-menu-item"
+      data-inset={inset}
+      data-variant={variant}
+      className={cn(
+        "group/context-menu-item relative flex cursor-default items-center gap-1.5 rounded-md px-1.5 py-1 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground data-inset:pl-7 data-[variant=destructive]:text-destructive data-[variant=destructive]:focus:bg-destructive/10 data-[variant=destructive]:focus:text-destructive dark:data-[variant=destructive]:focus:bg-destructive/20 data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4 focus:*:[svg]:text-accent-foreground data-[variant=destructive]:*:[svg]:text-destructive",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function ContextMenuSubTrigger({
+  className,
+  inset,
+  children,
+  ...props
+}: React.ComponentProps<typeof ContextMenuPrimitive.SubTrigger> & {
+  inset?: boolean
+}) {
+  return (
+    <ContextMenuPrimitive.SubTrigger
+      data-slot="context-menu-sub-trigger"
+      data-inset={inset}
+      className={cn(
+        "flex cursor-default items-center gap-1.5 rounded-md px-1.5 py-1 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground data-inset:pl-7 data-open:bg-accent data-open:text-accent-foreground [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      {children}
+      <ChevronRightIcon className="ml-auto" />
+    </ContextMenuPrimitive.SubTrigger>
+  )
+}
+
+function ContextMenuSubContent({
+  className,
+  ...props
+}: React.ComponentProps<typeof ContextMenuPrimitive.SubContent>) {
+  return (
+    <ContextMenuPrimitive.SubContent
+      data-slot="context-menu-sub-content"
+      className={cn("z-50 min-w-32 origin-(--radix-context-menu-content-transform-origin) overflow-hidden rounded-lg border bg-popover p-1 text-popover-foreground shadow-lg duration-100 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95", className )}
+      {...props}
+    />
+  )
+}
+
+function ContextMenuCheckboxItem({
+  className,
+  children,
+  checked,
+  inset,
+  ...props
+}: React.ComponentProps<typeof ContextMenuPrimitive.CheckboxItem> & {
+  inset?: boolean
+}) {
+  return (
+    <ContextMenuPrimitive.CheckboxItem
+      data-slot="context-menu-checkbox-item"
+      data-inset={inset}
+      className={cn(
+        "relative flex cursor-default items-center gap-1.5 rounded-md py-1 pr-8 pl-1.5 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground data-inset:pl-7 data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      checked={checked}
+      {...props}
+    >
+      <span className="pointer-events-none absolute right-2">
+        <ContextMenuPrimitive.ItemIndicator>
+          <CheckIcon
+          />
+        </ContextMenuPrimitive.ItemIndicator>
+      </span>
+      {children}
+    </ContextMenuPrimitive.CheckboxItem>
+  )
+}
+
+function ContextMenuRadioItem({
+  className,
+  children,
+  inset,
+  ...props
+}: React.ComponentProps<typeof ContextMenuPrimitive.RadioItem> & {
+  inset?: boolean
+}) {
+  return (
+    <ContextMenuPrimitive.RadioItem
+      data-slot="context-menu-radio-item"
+      data-inset={inset}
+      className={cn(
+        "relative flex cursor-default items-center gap-1.5 rounded-md py-1 pr-8 pl-1.5 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground data-inset:pl-7 data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      <span className="pointer-events-none absolute right-2">
+        <ContextMenuPrimitive.ItemIndicator>
+          <CheckIcon
+          />
+        </ContextMenuPrimitive.ItemIndicator>
+      </span>
+      {children}
+    </ContextMenuPrimitive.RadioItem>
+  )
+}
+
+function ContextMenuLabel({
+  className,
+  inset,
+  ...props
+}: React.ComponentProps<typeof ContextMenuPrimitive.Label> & {
+  inset?: boolean
+}) {
+  return (
+    <ContextMenuPrimitive.Label
+      data-slot="context-menu-label"
+      data-inset={inset}
+      className={cn(
+        "px-1.5 py-1 text-xs font-medium text-muted-foreground data-inset:pl-7",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function ContextMenuSeparator({
+  className,
+  ...props
+}: React.ComponentProps<typeof ContextMenuPrimitive.Separator>) {
+  return (
+    <ContextMenuPrimitive.Separator
+      data-slot="context-menu-separator"
+      className={cn("-mx-1 my-1 h-px bg-border", className)}
+      {...props}
+    />
+  )
+}
+
+function ContextMenuShortcut({
+  className,
+  ...props
+}: React.ComponentProps<"span">) {
+  return (
+    <span
+      data-slot="context-menu-shortcut"
+      className={cn(
+        "ml-auto text-xs tracking-widest text-muted-foreground group-focus/context-menu-item:text-accent-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  ContextMenu,
+  ContextMenuTrigger,
+  ContextMenuContent,
+  ContextMenuItem,
+  ContextMenuCheckboxItem,
+  ContextMenuRadioItem,
+  ContextMenuLabel,
+  ContextMenuSeparator,
+  ContextMenuShortcut,
+  ContextMenuGroup,
+  ContextMenuPortal,
+  ContextMenuSub,
+  ContextMenuSubContent,
+  ContextMenuSubTrigger,
+  ContextMenuRadioGroup,
+}

frontend/src/components/ui/dialog.tsx

@@ -0,0 +1,168 @@
+"use client"
+
+import * as React from "react"
+import { Dialog as DialogPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { Button } from "@/components/ui/button"
+import { XIcon } from "lucide-react"
+
+function Dialog({
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Root>) {
+  return <DialogPrimitive.Root data-slot="dialog" {...props} />
+}
+
+function DialogTrigger({
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Trigger>) {
+  return <DialogPrimitive.Trigger data-slot="dialog-trigger" {...props} />
+}
+
+function DialogPortal({
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Portal>) {
+  return <DialogPrimitive.Portal data-slot="dialog-portal" {...props} />
+}
+
+function DialogClose({
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Close>) {
+  return <DialogPrimitive.Close data-slot="dialog-close" {...props} />
+}
+
+function DialogOverlay({
+  className,
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Overlay>) {
+  return (
+    <DialogPrimitive.Overlay
+      data-slot="dialog-overlay"
+      className={cn(
+        "fixed inset-0 isolate z-50 bg-black/10 duration-100 supports-backdrop-filter:backdrop-blur-xs data-open:animate-in data-open:fade-in-0 data-closed:animate-out data-closed:fade-out-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DialogContent({
+  className,
+  children,
+  showCloseButton = true,
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Content> & {
+  showCloseButton?: boolean
+}) {
+  return (
+    <DialogPortal>
+      <DialogOverlay />
+      <DialogPrimitive.Content
+        data-slot="dialog-content"
+        className={cn(
+          "fixed top-1/2 left-1/2 z-50 grid w-full max-w-[calc(100%-2rem)] -translate-x-1/2 -translate-y-1/2 gap-4 rounded-xl bg-popover p-4 text-sm text-popover-foreground ring-1 ring-foreground/10 duration-100 outline-none sm:max-w-sm data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95",
+          className
+        )}
+        {...props}
+      >
+        {children}
+        {showCloseButton && (
+          <DialogPrimitive.Close data-slot="dialog-close" asChild>
+            <Button
+              variant="ghost"
+              className="absolute top-2 right-2"
+              size="icon-sm"
+            >
+              <XIcon
+              />
+              <span className="sr-only">Close</span>
+            </Button>
+          </DialogPrimitive.Close>
+        )}
+      </DialogPrimitive.Content>
+    </DialogPortal>
+  )
+}
+
+function DialogHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="dialog-header"
+      className={cn("flex flex-col gap-2", className)}
+      {...props}
+    />
+  )
+}
+
+function DialogFooter({
+  className,
+  showCloseButton = false,
+  children,
+  ...props
+}: React.ComponentProps<"div"> & {
+  showCloseButton?: boolean
+}) {
+  return (
+    <div
+      data-slot="dialog-footer"
+      className={cn(
+        "-mx-4 -mb-4 flex flex-col-reverse gap-2 rounded-b-xl border-t bg-muted/50 p-4 sm:flex-row sm:justify-end",
+        className
+      )}
+      {...props}
+    >
+      {children}
+      {showCloseButton && (
+        <DialogPrimitive.Close asChild>
+          <Button variant="outline">Close</Button>
+        </DialogPrimitive.Close>
+      )}
+    </div>
+  )
+}
+
+function DialogTitle({
+  className,
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Title>) {
+  return (
+    <DialogPrimitive.Title
+      data-slot="dialog-title"
+      className={cn(
+        "font-heading text-base leading-none font-medium",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DialogDescription({
+  className,
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Description>) {
+  return (
+    <DialogPrimitive.Description
+      data-slot="dialog-description"
+      className={cn(
+        "text-sm text-muted-foreground *:[a]:underline *:[a]:underline-offset-3 *:[a]:hover:text-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  Dialog,
+  DialogClose,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogOverlay,
+  DialogPortal,
+  DialogTitle,
+  DialogTrigger,
+}

frontend/src/components/ui/direction.tsx

@@ -0,0 +1,22 @@
+"use client"
+
+import * as React from "react"
+import { Direction } from "radix-ui"
+
+function DirectionProvider({
+  dir,
+  direction,
+  children,
+}: React.ComponentProps<typeof Direction.DirectionProvider> & {
+  direction?: React.ComponentProps<typeof Direction.DirectionProvider>["dir"]
+}) {
+  return (
+    <Direction.DirectionProvider dir={direction ?? dir}>
+      {children}
+    </Direction.DirectionProvider>
+  )
+}
+
+const useDirection = Direction.useDirection
+
+export { DirectionProvider, useDirection }

frontend/src/components/ui/drawer.tsx

@@ -0,0 +1,134 @@
+"use client"
+
+import * as React from "react"
+import { Drawer as DrawerPrimitive } from "vaul"
+
+import { cn } from "@/lib/utils"
+
+function Drawer({
+  ...props
+}: React.ComponentProps<typeof DrawerPrimitive.Root>) {
+  return <DrawerPrimitive.Root data-slot="drawer" {...props} />
+}
+
+function DrawerTrigger({
+  ...props
+}: React.ComponentProps<typeof DrawerPrimitive.Trigger>) {
+  return <DrawerPrimitive.Trigger data-slot="drawer-trigger" {...props} />
+}
+
+function DrawerPortal({
+  ...props
+}: React.ComponentProps<typeof DrawerPrimitive.Portal>) {
+  return <DrawerPrimitive.Portal data-slot="drawer-portal" {...props} />
+}
+
+function DrawerClose({
+  ...props
+}: React.ComponentProps<typeof DrawerPrimitive.Close>) {
+  return <DrawerPrimitive.Close data-slot="drawer-close" {...props} />
+}
+
+function DrawerOverlay({
+  className,
+  ...props
+}: React.ComponentProps<typeof DrawerPrimitive.Overlay>) {
+  return (
+    <DrawerPrimitive.Overlay
+      data-slot="drawer-overlay"
+      className={cn(
+        "fixed inset-0 z-50 bg-black/10 supports-backdrop-filter:backdrop-blur-xs data-open:animate-in data-open:fade-in-0 data-closed:animate-out data-closed:fade-out-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DrawerContent({
+  className,
+  children,
+  ...props
+}: React.ComponentProps<typeof DrawerPrimitive.Content>) {
+  return (
+    <DrawerPortal data-slot="drawer-portal">
+      <DrawerOverlay />
+      <DrawerPrimitive.Content
+        data-slot="drawer-content"
+        className={cn(
+          "group/drawer-content fixed z-50 flex h-auto flex-col bg-popover text-sm text-popover-foreground data-[vaul-drawer-direction=bottom]:inset-x-0 data-[vaul-drawer-direction=bottom]:bottom-0 data-[vaul-drawer-direction=bottom]:mt-24 data-[vaul-drawer-direction=bottom]:max-h-[80vh] data-[vaul-drawer-direction=bottom]:rounded-t-xl data-[vaul-drawer-direction=bottom]:border-t data-[vaul-drawer-direction=left]:inset-y-0 data-[vaul-drawer-direction=left]:left-0 data-[vaul-drawer-direction=left]:w-3/4 data-[vaul-drawer-direction=left]:rounded-r-xl data-[vaul-drawer-direction=left]:border-r data-[vaul-drawer-direction=right]:inset-y-0 data-[vaul-drawer-direction=right]:right-0 data-[vaul-drawer-direction=right]:w-3/4 data-[vaul-drawer-direction=right]:rounded-l-xl data-[vaul-drawer-direction=right]:border-l data-[vaul-drawer-direction=top]:inset-x-0 data-[vaul-drawer-direction=top]:top-0 data-[vaul-drawer-direction=top]:mb-24 data-[vaul-drawer-direction=top]:max-h-[80vh] data-[vaul-drawer-direction=top]:rounded-b-xl data-[vaul-drawer-direction=top]:border-b data-[vaul-drawer-direction=left]:sm:max-w-sm data-[vaul-drawer-direction=right]:sm:max-w-sm",
+          className
+        )}
+        {...props}
+      >
+        <div className="mx-auto mt-4 hidden h-1 w-[100px] shrink-0 rounded-full bg-muted group-data-[vaul-drawer-direction=bottom]/drawer-content:block" />
+        {children}
+      </DrawerPrimitive.Content>
+    </DrawerPortal>
+  )
+}
+
+function DrawerHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="drawer-header"
+      className={cn(
+        "flex flex-col gap-0.5 p-4 group-data-[vaul-drawer-direction=bottom]/drawer-content:text-center group-data-[vaul-drawer-direction=top]/drawer-content:text-center md:gap-0.5 md:text-left",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DrawerFooter({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="drawer-footer"
+      className={cn("mt-auto flex flex-col gap-2 p-4", className)}
+      {...props}
+    />
+  )
+}
+
+function DrawerTitle({
+  className,
+  ...props
+}: React.ComponentProps<typeof DrawerPrimitive.Title>) {
+  return (
+    <DrawerPrimitive.Title
+      data-slot="drawer-title"
+      className={cn(
+        "font-heading text-base font-medium text-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DrawerDescription({
+  className,
+  ...props
+}: React.ComponentProps<typeof DrawerPrimitive.Description>) {
+  return (
+    <DrawerPrimitive.Description
+      data-slot="drawer-description"
+      className={cn("text-sm text-muted-foreground", className)}
+      {...props}
+    />
+  )
+}
+
+export {
+  Drawer,
+  DrawerPortal,
+  DrawerOverlay,
+  DrawerTrigger,
+  DrawerClose,
+  DrawerContent,
+  DrawerHeader,
+  DrawerFooter,
+  DrawerTitle,
+  DrawerDescription,
+}

frontend/src/components/ui/dropdown-menu.tsx

@@ -0,0 +1,269 @@
+"use client"
+
+import * as React from "react"
+import { DropdownMenu as DropdownMenuPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { CheckIcon, ChevronRightIcon } from "lucide-react"
+
+function DropdownMenu({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Root>) {
+  return <DropdownMenuPrimitive.Root data-slot="dropdown-menu" {...props} />
+}
+
+function DropdownMenuPortal({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Portal>) {
+  return (
+    <DropdownMenuPrimitive.Portal data-slot="dropdown-menu-portal" {...props} />
+  )
+}
+
+function DropdownMenuTrigger({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Trigger>) {
+  return (
+    <DropdownMenuPrimitive.Trigger
+      data-slot="dropdown-menu-trigger"
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuContent({
+  className,
+  align = "start",
+  sideOffset = 4,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Content>) {
+  return (
+    <DropdownMenuPrimitive.Portal>
+      <DropdownMenuPrimitive.Content
+        data-slot="dropdown-menu-content"
+        sideOffset={sideOffset}
+        align={align}
+        className={cn("z-50 max-h-(--radix-dropdown-menu-content-available-height) w-(--radix-dropdown-menu-trigger-width) min-w-32 origin-(--radix-dropdown-menu-content-transform-origin) overflow-x-hidden overflow-y-auto rounded-lg bg-popover p-1 text-popover-foreground shadow-md ring-1 ring-foreground/10 duration-100 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 data-[state=closed]:overflow-hidden data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95", className )}
+        {...props}
+      />
+    </DropdownMenuPrimitive.Portal>
+  )
+}
+
+function DropdownMenuGroup({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Group>) {
+  return (
+    <DropdownMenuPrimitive.Group data-slot="dropdown-menu-group" {...props} />
+  )
+}
+
+function DropdownMenuItem({
+  className,
+  inset,
+  variant = "default",
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Item> & {
+  inset?: boolean
+  variant?: "default" | "destructive"
+}) {
+  return (
+    <DropdownMenuPrimitive.Item
+      data-slot="dropdown-menu-item"
+      data-inset={inset}
+      data-variant={variant}
+      className={cn(
+        "group/dropdown-menu-item relative flex cursor-default items-center gap-1.5 rounded-md px-1.5 py-1 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground not-data-[variant=destructive]:focus:**:text-accent-foreground data-inset:pl-7 data-[variant=destructive]:text-destructive data-[variant=destructive]:focus:bg-destructive/10 data-[variant=destructive]:focus:text-destructive dark:data-[variant=destructive]:focus:bg-destructive/20 data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4 data-[variant=destructive]:*:[svg]:text-destructive",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuCheckboxItem({
+  className,
+  children,
+  checked,
+  inset,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.CheckboxItem> & {
+  inset?: boolean
+}) {
+  return (
+    <DropdownMenuPrimitive.CheckboxItem
+      data-slot="dropdown-menu-checkbox-item"
+      data-inset={inset}
+      className={cn(
+        "relative flex cursor-default items-center gap-1.5 rounded-md py-1 pr-8 pl-1.5 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground focus:**:text-accent-foreground data-inset:pl-7 data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      checked={checked}
+      {...props}
+    >
+      <span
+        className="pointer-events-none absolute right-2 flex items-center justify-center"
+        data-slot="dropdown-menu-checkbox-item-indicator"
+      >
+        <DropdownMenuPrimitive.ItemIndicator>
+          <CheckIcon
+          />
+        </DropdownMenuPrimitive.ItemIndicator>
+      </span>
+      {children}
+    </DropdownMenuPrimitive.CheckboxItem>
+  )
+}
+
+function DropdownMenuRadioGroup({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.RadioGroup>) {
+  return (
+    <DropdownMenuPrimitive.RadioGroup
+      data-slot="dropdown-menu-radio-group"
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuRadioItem({
+  className,
+  children,
+  inset,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.RadioItem> & {
+  inset?: boolean
+}) {
+  return (
+    <DropdownMenuPrimitive.RadioItem
+      data-slot="dropdown-menu-radio-item"
+      data-inset={inset}
+      className={cn(
+        "relative flex cursor-default items-center gap-1.5 rounded-md py-1 pr-8 pl-1.5 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground focus:**:text-accent-foreground data-inset:pl-7 data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      <span
+        className="pointer-events-none absolute right-2 flex items-center justify-center"
+        data-slot="dropdown-menu-radio-item-indicator"
+      >
+        <DropdownMenuPrimitive.ItemIndicator>
+          <CheckIcon
+          />
+        </DropdownMenuPrimitive.ItemIndicator>
+      </span>
+      {children}
+    </DropdownMenuPrimitive.RadioItem>
+  )
+}
+
+function DropdownMenuLabel({
+  className,
+  inset,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Label> & {
+  inset?: boolean
+}) {
+  return (
+    <DropdownMenuPrimitive.Label
+      data-slot="dropdown-menu-label"
+      data-inset={inset}
+      className={cn(
+        "px-1.5 py-1 text-xs font-medium text-muted-foreground data-inset:pl-7",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuSeparator({
+  className,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Separator>) {
+  return (
+    <DropdownMenuPrimitive.Separator
+      data-slot="dropdown-menu-separator"
+      className={cn("-mx-1 my-1 h-px bg-border", className)}
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuShortcut({
+  className,
+  ...props
+}: React.ComponentProps<"span">) {
+  return (
+    <span
+      data-slot="dropdown-menu-shortcut"
+      className={cn(
+        "ml-auto text-xs tracking-widest text-muted-foreground group-focus/dropdown-menu-item:text-accent-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuSub({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Sub>) {
+  return <DropdownMenuPrimitive.Sub data-slot="dropdown-menu-sub" {...props} />
+}
+
+function DropdownMenuSubTrigger({
+  className,
+  inset,
+  children,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.SubTrigger> & {
+  inset?: boolean
+}) {
+  return (
+    <DropdownMenuPrimitive.SubTrigger
+      data-slot="dropdown-menu-sub-trigger"
+      data-inset={inset}
+      className={cn(
+        "flex cursor-default items-center gap-1.5 rounded-md px-1.5 py-1 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground not-data-[variant=destructive]:focus:**:text-accent-foreground data-inset:pl-7 data-open:bg-accent data-open:text-accent-foreground [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      {children}
+      <ChevronRightIcon className="ml-auto" />
+    </DropdownMenuPrimitive.SubTrigger>
+  )
+}
+
+function DropdownMenuSubContent({
+  className,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.SubContent>) {
+  return (
+    <DropdownMenuPrimitive.SubContent
+      data-slot="dropdown-menu-sub-content"
+      className={cn("z-50 min-w-[96px] origin-(--radix-dropdown-menu-content-transform-origin) overflow-hidden rounded-lg bg-popover p-1 text-popover-foreground shadow-lg ring-1 ring-foreground/10 duration-100 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95", className )}
+      {...props}
+    />
+  )
+}
+
+export {
+  DropdownMenu,
+  DropdownMenuPortal,
+  DropdownMenuTrigger,
+  DropdownMenuContent,
+  DropdownMenuGroup,
+  DropdownMenuLabel,
+  DropdownMenuItem,
+  DropdownMenuCheckboxItem,
+  DropdownMenuRadioGroup,
+  DropdownMenuRadioItem,
+  DropdownMenuSeparator,
+  DropdownMenuShortcut,
+  DropdownMenuSub,
+  DropdownMenuSubTrigger,
+  DropdownMenuSubContent,
+}

frontend/src/components/ui/empty.tsx

@@ -0,0 +1,104 @@
+import { cva, type VariantProps } from "class-variance-authority"
+
+import { cn } from "@/lib/utils"
+
+function Empty({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="empty"
+      className={cn(
+        "flex w-full min-w-0 flex-1 flex-col items-center justify-center gap-4 rounded-xl border-dashed p-6 text-center text-balance",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function EmptyHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="empty-header"
+      className={cn("flex max-w-sm flex-col items-center gap-2", className)}
+      {...props}
+    />
+  )
+}
+
+const emptyMediaVariants = cva(
+  "mb-2 flex shrink-0 items-center justify-center [&_svg]:pointer-events-none [&_svg]:shrink-0",
+  {
+    variants: {
+      variant: {
+        default: "bg-transparent",
+        icon: "flex size-8 shrink-0 items-center justify-center rounded-lg bg-muted text-foreground [&_svg:not([class*='size-'])]:size-4",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+    },
+  }
+)
+
+function EmptyMedia({
+  className,
+  variant = "default",
+  ...props
+}: React.ComponentProps<"div"> & VariantProps<typeof emptyMediaVariants>) {
+  return (
+    <div
+      data-slot="empty-icon"
+      data-variant={variant}
+      className={cn(emptyMediaVariants({ variant, className }))}
+      {...props}
+    />
+  )
+}
+
+function EmptyTitle({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="empty-title"
+      className={cn(
+        "font-heading text-sm font-medium tracking-tight",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function EmptyDescription({ className, ...props }: React.ComponentProps<"p">) {
+  return (
+    <div
+      data-slot="empty-description"
+      className={cn(
+        "text-sm/relaxed text-muted-foreground [&>a]:underline [&>a]:underline-offset-4 [&>a:hover]:text-primary",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function EmptyContent({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="empty-content"
+      className={cn(
+        "flex w-full max-w-sm min-w-0 flex-col items-center gap-2.5 text-sm text-balance",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  Empty,
+  EmptyHeader,
+  EmptyTitle,
+  EmptyDescription,
+  EmptyContent,
+  EmptyMedia,
+}

frontend/src/components/ui/field.tsx

@@ -0,0 +1,238 @@
+"use client"
+
+import { useMemo } from "react"
+import { cva, type VariantProps } from "class-variance-authority"
+
+import { cn } from "@/lib/utils"
+import { Label } from "@/components/ui/label"
+import { Separator } from "@/components/ui/separator"
+
+function FieldSet({ className, ...props }: React.ComponentProps<"fieldset">) {
+  return (
+    <fieldset
+      data-slot="field-set"
+      className={cn(
+        "flex flex-col gap-4 has-[>[data-slot=checkbox-group]]:gap-3 has-[>[data-slot=radio-group]]:gap-3",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function FieldLegend({
+  className,
+  variant = "legend",
+  ...props
+}: React.ComponentProps<"legend"> & { variant?: "legend" | "label" }) {
+  return (
+    <legend
+      data-slot="field-legend"
+      data-variant={variant}
+      className={cn(
+        "mb-1.5 font-medium data-[variant=label]:text-sm data-[variant=legend]:text-base",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function FieldGroup({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="field-group"
+      className={cn(
+        "group/field-group @container/field-group flex w-full flex-col gap-5 data-[slot=checkbox-group]:gap-3 *:data-[slot=field-group]:gap-4",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+const fieldVariants = cva(
+  "group/field flex w-full gap-2 data-[invalid=true]:text-destructive",
+  {
+    variants: {
+      orientation: {
+        vertical: "flex-col *:w-full [&>.sr-only]:w-auto",
+        horizontal:
+          "flex-row items-center has-[>[data-slot=field-content]]:items-start *:data-[slot=field-label]:flex-auto has-[>[data-slot=field-content]]:[&>[role=checkbox],[role=radio]]:mt-px",
+        responsive:
+          "flex-col *:w-full @md/field-group:flex-row @md/field-group:items-center @md/field-group:*:w-auto @md/field-group:has-[>[data-slot=field-content]]:items-start @md/field-group:*:data-[slot=field-label]:flex-auto [&>.sr-only]:w-auto @md/field-group:has-[>[data-slot=field-content]]:[&>[role=checkbox],[role=radio]]:mt-px",
+      },
+    },
+    defaultVariants: {
+      orientation: "vertical",
+    },
+  }
+)
+
+function Field({
+  className,
+  orientation = "vertical",
+  ...props
+}: React.ComponentProps<"div"> & VariantProps<typeof fieldVariants>) {
+  return (
+    <div
+      role="group"
+      data-slot="field"
+      data-orientation={orientation}
+      className={cn(fieldVariants({ orientation }), className)}
+      {...props}
+    />
+  )
+}
+
+function FieldContent({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="field-content"
+      className={cn(
+        "group/field-content flex flex-1 flex-col gap-0.5 leading-snug",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function FieldLabel({
+  className,
+  ...props
+}: React.ComponentProps<typeof Label>) {
+  return (
+    <Label
+      data-slot="field-label"
+      className={cn(
+        "group/field-label peer/field-label flex w-fit gap-2 leading-snug group-data-[disabled=true]/field:opacity-50 has-data-checked:border-primary/30 has-data-checked:bg-primary/5 has-[>[data-slot=field]]:rounded-lg has-[>[data-slot=field]]:border *:data-[slot=field]:p-2.5 dark:has-data-checked:border-primary/20 dark:has-data-checked:bg-primary/10",
+        "has-[>[data-slot=field]]:w-full has-[>[data-slot=field]]:flex-col",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function FieldTitle({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="field-label"
+      className={cn(
+        "flex w-fit items-center gap-2 text-sm font-medium group-data-[disabled=true]/field:opacity-50",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function FieldDescription({ className, ...props }: React.ComponentProps<"p">) {
+  return (
+    <p
+      data-slot="field-description"
+      className={cn(
+        "text-left text-sm leading-normal font-normal text-muted-foreground group-has-data-horizontal/field:text-balance [[data-variant=legend]+&]:-mt-1.5",
+        "last:mt-0 nth-last-2:-mt-1",
+        "[&>a]:underline [&>a]:underline-offset-4 [&>a:hover]:text-primary",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function FieldSeparator({
+  children,
+  className,
+  ...props
+}: React.ComponentProps<"div"> & {
+  children?: React.ReactNode
+}) {
+  return (
+    <div
+      data-slot="field-separator"
+      data-content={!!children}
+      className={cn(
+        "relative -my-2 h-5 text-sm group-data-[variant=outline]/field-group:-mb-2",
+        className
+      )}
+      {...props}
+    >
+      <Separator className="absolute inset-0 top-1/2" />
+      {children && (
+        <span
+          className="relative mx-auto block w-fit bg-background px-2 text-muted-foreground"
+          data-slot="field-separator-content"
+        >
+          {children}
+        </span>
+      )}
+    </div>
+  )
+}
+
+function FieldError({
+  className,
+  children,
+  errors,
+  ...props
+}: React.ComponentProps<"div"> & {
+  errors?: Array<{ message?: string } | undefined>
+}) {
+  const content = useMemo(() => {
+    if (children) {
+      return children
+    }
+
+    if (!errors?.length) {
+      return null
+    }
+
+    const uniqueErrors = [
+      ...new Map(errors.map((error) => [error?.message, error])).values(),
+    ]
+
+    if (uniqueErrors?.length == 1) {
+      return uniqueErrors[0]?.message
+    }
+
+    return (
+      <ul className="ml-4 flex list-disc flex-col gap-1">
+        {uniqueErrors.map(
+          (error, index) =>
+            error?.message && <li key={index}>{error.message}</li>
+        )}
+      </ul>
+    )
+  }, [children, errors])
+
+  if (!content) {
+    return null
+  }
+
+  return (
+    <div
+      role="alert"
+      data-slot="field-error"
+      className={cn("text-sm font-normal text-destructive", className)}
+      {...props}
+    >
+      {content}
+    </div>
+  )
+}
+
+export {
+  Field,
+  FieldLabel,
+  FieldDescription,
+  FieldError,
+  FieldGroup,
+  FieldLegend,
+  FieldSeparator,
+  FieldSet,
+  FieldContent,
+  FieldTitle,
+}

frontend/src/components/ui/hover-card.tsx

@@ -0,0 +1,44 @@
+"use client"
+
+import * as React from "react"
+import { HoverCard as HoverCardPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function HoverCard({
+  ...props
+}: React.ComponentProps<typeof HoverCardPrimitive.Root>) {
+  return <HoverCardPrimitive.Root data-slot="hover-card" {...props} />
+}
+
+function HoverCardTrigger({
+  ...props
+}: React.ComponentProps<typeof HoverCardPrimitive.Trigger>) {
+  return (
+    <HoverCardPrimitive.Trigger data-slot="hover-card-trigger" {...props} />
+  )
+}
+
+function HoverCardContent({
+  className,
+  align = "center",
+  sideOffset = 4,
+  ...props
+}: React.ComponentProps<typeof HoverCardPrimitive.Content>) {
+  return (
+    <HoverCardPrimitive.Portal data-slot="hover-card-portal">
+      <HoverCardPrimitive.Content
+        data-slot="hover-card-content"
+        align={align}
+        sideOffset={sideOffset}
+        className={cn(
+          "z-50 w-64 origin-(--radix-hover-card-content-transform-origin) rounded-lg bg-popover p-2.5 text-sm text-popover-foreground shadow-md ring-1 ring-foreground/10 outline-hidden duration-100 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95",
+          className
+        )}
+        {...props}
+      />
+    </HoverCardPrimitive.Portal>
+  )
+}
+
+export { HoverCard, HoverCardTrigger, HoverCardContent }

frontend/src/components/ui/input-group.tsx

@@ -0,0 +1,156 @@
+"use client"
+
+import * as React from "react"
+import { cva, type VariantProps } from "class-variance-authority"
+
+import { cn } from "@/lib/utils"
+import { Button } from "@/components/ui/button"
+import { Input } from "@/components/ui/input"
+import { Textarea } from "@/components/ui/textarea"
+
+function InputGroup({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="input-group"
+      role="group"
+      className={cn(
+        "group/input-group relative flex h-8 w-full min-w-0 items-center rounded-lg border border-input transition-colors outline-none in-data-[slot=combobox-content]:focus-within:border-inherit in-data-[slot=combobox-content]:focus-within:ring-0 has-disabled:bg-input/50 has-disabled:opacity-50 has-[[data-slot=input-group-control]:focus-visible]:border-ring has-[[data-slot=input-group-control]:focus-visible]:ring-3 has-[[data-slot=input-group-control]:focus-visible]:ring-ring/50 has-[[data-slot][aria-invalid=true]]:border-destructive has-[[data-slot][aria-invalid=true]]:ring-3 has-[[data-slot][aria-invalid=true]]:ring-destructive/20 has-[>[data-align=block-end]]:h-auto has-[>[data-align=block-end]]:flex-col has-[>[data-align=block-start]]:h-auto has-[>[data-align=block-start]]:flex-col has-[>textarea]:h-auto dark:bg-input/30 dark:has-disabled:bg-input/80 dark:has-[[data-slot][aria-invalid=true]]:ring-destructive/40 has-[>[data-align=block-end]]:[&>input]:pt-3 has-[>[data-align=block-start]]:[&>input]:pb-3 has-[>[data-align=inline-end]]:[&>input]:pr-1.5 has-[>[data-align=inline-start]]:[&>input]:pl-1.5",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+const inputGroupAddonVariants = cva(
+  "flex h-auto cursor-text items-center justify-center gap-2 py-1.5 text-sm font-medium text-muted-foreground select-none group-data-[disabled=true]/input-group:opacity-50 [&>kbd]:rounded-[calc(var(--radius)-5px)] [&>svg:not([class*='size-'])]:size-4",
+  {
+    variants: {
+      align: {
+        "inline-start":
+          "order-first pl-2 has-[>button]:ml-[-0.3rem] has-[>kbd]:ml-[-0.15rem]",
+        "inline-end":
+          "order-last pr-2 has-[>button]:mr-[-0.3rem] has-[>kbd]:mr-[-0.15rem]",
+        "block-start":
+          "order-first w-full justify-start px-2.5 pt-2 group-has-[>input]/input-group:pt-2 [.border-b]:pb-2",
+        "block-end":
+          "order-last w-full justify-start px-2.5 pb-2 group-has-[>input]/input-group:pb-2 [.border-t]:pt-2",
+      },
+    },
+    defaultVariants: {
+      align: "inline-start",
+    },
+  }
+)
+
+function InputGroupAddon({
+  className,
+  align = "inline-start",
+  ...props
+}: React.ComponentProps<"div"> & VariantProps<typeof inputGroupAddonVariants>) {
+  return (
+    <div
+      role="group"
+      data-slot="input-group-addon"
+      data-align={align}
+      className={cn(inputGroupAddonVariants({ align }), className)}
+      onClick={(e) => {
+        if ((e.target as HTMLElement).closest("button")) {
+          return
+        }
+        e.currentTarget.parentElement?.querySelector("input")?.focus()
+      }}
+      {...props}
+    />
+  )
+}
+
+const inputGroupButtonVariants = cva(
+  "flex items-center gap-2 text-sm shadow-none",
+  {
+    variants: {
+      size: {
+        xs: "h-6 gap-1 rounded-[calc(var(--radius)-3px)] px-1.5 [&>svg:not([class*='size-'])]:size-3.5",
+        sm: "",
+        "icon-xs":
+          "size-6 rounded-[calc(var(--radius)-3px)] p-0 has-[>svg]:p-0",
+        "icon-sm": "size-8 p-0 has-[>svg]:p-0",
+      },
+    },
+    defaultVariants: {
+      size: "xs",
+    },
+  }
+)
+
+function InputGroupButton({
+  className,
+  type = "button",
+  variant = "ghost",
+  size = "xs",
+  ...props
+}: Omit<React.ComponentProps<typeof Button>, "size"> &
+  VariantProps<typeof inputGroupButtonVariants>) {
+  return (
+    <Button
+      type={type}
+      data-size={size}
+      variant={variant}
+      className={cn(inputGroupButtonVariants({ size }), className)}
+      {...props}
+    />
+  )
+}
+
+function InputGroupText({ className, ...props }: React.ComponentProps<"span">) {
+  return (
+    <span
+      className={cn(
+        "flex items-center gap-2 text-sm text-muted-foreground [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function InputGroupInput({
+  className,
+  ...props
+}: React.ComponentProps<"input">) {
+  return (
+    <Input
+      data-slot="input-group-control"
+      className={cn(
+        "flex-1 rounded-none border-0 bg-transparent shadow-none ring-0 focus-visible:ring-0 disabled:bg-transparent aria-invalid:ring-0 dark:bg-transparent dark:disabled:bg-transparent",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function InputGroupTextarea({
+  className,
+  ...props
+}: React.ComponentProps<"textarea">) {
+  return (
+    <Textarea
+      data-slot="input-group-control"
+      className={cn(
+        "flex-1 resize-none rounded-none border-0 bg-transparent py-2 shadow-none ring-0 focus-visible:ring-0 disabled:bg-transparent aria-invalid:ring-0 dark:bg-transparent dark:disabled:bg-transparent",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  InputGroup,
+  InputGroupAddon,
+  InputGroupButton,
+  InputGroupText,
+  InputGroupInput,
+  InputGroupTextarea,
+}

frontend/src/components/ui/input-otp.tsx

@@ -0,0 +1,87 @@
+"use client"
+
+import * as React from "react"
+import { OTPInput, OTPInputContext } from "input-otp"
+
+import { cn } from "@/lib/utils"
+import { MinusIcon } from "lucide-react"
+
+function InputOTP({
+  className,
+  containerClassName,
+  ...props
+}: React.ComponentProps<typeof OTPInput> & {
+  containerClassName?: string
+}) {
+  return (
+    <OTPInput
+      data-slot="input-otp"
+      containerClassName={cn(
+        "cn-input-otp flex items-center has-disabled:opacity-50",
+        containerClassName
+      )}
+      spellCheck={false}
+      className={cn("disabled:cursor-not-allowed", className)}
+      {...props}
+    />
+  )
+}
+
+function InputOTPGroup({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="input-otp-group"
+      className={cn(
+        "flex items-center rounded-lg has-aria-invalid:border-destructive has-aria-invalid:ring-3 has-aria-invalid:ring-destructive/20 dark:has-aria-invalid:ring-destructive/40",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function InputOTPSlot({
+  index,
+  className,
+  ...props
+}: React.ComponentProps<"div"> & {
+  index: number
+}) {
+  const inputOTPContext = React.useContext(OTPInputContext)
+  const { char, hasFakeCaret, isActive } = inputOTPContext?.slots[index] ?? {}
+
+  return (
+    <div
+      data-slot="input-otp-slot"
+      data-active={isActive}
+      className={cn(
+        "relative flex size-8 items-center justify-center border-y border-r border-input text-sm transition-all outline-none first:rounded-l-lg first:border-l last:rounded-r-lg aria-invalid:border-destructive data-[active=true]:z-10 data-[active=true]:border-ring data-[active=true]:ring-3 data-[active=true]:ring-ring/50 data-[active=true]:aria-invalid:border-destructive data-[active=true]:aria-invalid:ring-destructive/20 dark:bg-input/30 dark:data-[active=true]:aria-invalid:ring-destructive/40",
+        className
+      )}
+      {...props}
+    >
+      {char}
+      {hasFakeCaret && (
+        <div className="pointer-events-none absolute inset-0 flex items-center justify-center">
+          <div className="h-4 w-px animate-caret-blink bg-foreground duration-1000" />
+        </div>
+      )}
+    </div>
+  )
+}
+
+function InputOTPSeparator({ ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="input-otp-separator"
+      className="flex items-center [&_svg:not([class*='size-'])]:size-4"
+      role="separator"
+      {...props}
+    >
+      <MinusIcon
+      />
+    </div>
+  )
+}
+
+export { InputOTP, InputOTPGroup, InputOTPSlot, InputOTPSeparator }

frontend/src/components/ui/input.tsx

@@ -0,0 +1,19 @@
+import * as React from "react"
+
+import { cn } from "@/lib/utils"
+
+function Input({ className, type, ...props }: React.ComponentProps<"input">) {
+  return (
+    <input
+      type={type}
+      data-slot="input"
+      className={cn(
+        "h-8 w-full min-w-0 rounded-lg border border-input bg-transparent px-2.5 py-1 text-base transition-colors outline-none file:inline-flex file:h-6 file:border-0 file:bg-transparent file:text-sm file:font-medium file:text-foreground placeholder:text-muted-foreground focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 disabled:pointer-events-none disabled:cursor-not-allowed disabled:bg-input/50 disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20 md:text-sm dark:bg-input/30 dark:disabled:bg-input/80 dark:aria-invalid:border-destructive/50 dark:aria-invalid:ring-destructive/40",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Input }

frontend/src/components/ui/item.tsx

@@ -0,0 +1,196 @@
+import * as React from "react"
+import { cva, type VariantProps } from "class-variance-authority"
+import { Slot } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { Separator } from "@/components/ui/separator"
+
+function ItemGroup({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      role="list"
+      data-slot="item-group"
+      className={cn(
+        "group/item-group flex w-full flex-col gap-4 has-data-[size=sm]:gap-2.5 has-data-[size=xs]:gap-2",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function ItemSeparator({
+  className,
+  ...props
+}: React.ComponentProps<typeof Separator>) {
+  return (
+    <Separator
+      data-slot="item-separator"
+      orientation="horizontal"
+      className={cn("my-2", className)}
+      {...props}
+    />
+  )
+}
+
+const itemVariants = cva(
+  "group/item flex w-full flex-wrap items-center rounded-lg border text-sm transition-colors duration-100 outline-none focus-visible:border-ring focus-visible:ring-[3px] focus-visible:ring-ring/50 [a]:transition-colors [a]:hover:bg-muted",
+  {
+    variants: {
+      variant: {
+        default: "border-transparent",
+        outline: "border-border",
+        muted: "border-transparent bg-muted/50",
+      },
+      size: {
+        default: "gap-2.5 px-3 py-2.5",
+        sm: "gap-2.5 px-3 py-2.5",
+        xs: "gap-2 px-2.5 py-2 in-data-[slot=dropdown-menu-content]:p-0",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+      size: "default",
+    },
+  }
+)
+
+function Item({
+  className,
+  variant = "default",
+  size = "default",
+  asChild = false,
+  ...props
+}: React.ComponentProps<"div"> &
+  VariantProps<typeof itemVariants> & { asChild?: boolean }) {
+  const Comp = asChild ? Slot.Root : "div"
+  return (
+    <Comp
+      data-slot="item"
+      data-variant={variant}
+      data-size={size}
+      className={cn(itemVariants({ variant, size, className }))}
+      {...props}
+    />
+  )
+}
+
+const itemMediaVariants = cva(
+  "flex shrink-0 items-center justify-center gap-2 group-has-data-[slot=item-description]/item:translate-y-0.5 group-has-data-[slot=item-description]/item:self-start [&_svg]:pointer-events-none",
+  {
+    variants: {
+      variant: {
+        default: "bg-transparent",
+        icon: "[&_svg:not([class*='size-'])]:size-4",
+        image:
+          "size-10 overflow-hidden rounded-sm group-data-[size=sm]/item:size-8 group-data-[size=xs]/item:size-6 [&_img]:size-full [&_img]:object-cover",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+    },
+  }
+)
+
+function ItemMedia({
+  className,
+  variant = "default",
+  ...props
+}: React.ComponentProps<"div"> & VariantProps<typeof itemMediaVariants>) {
+  return (
+    <div
+      data-slot="item-media"
+      data-variant={variant}
+      className={cn(itemMediaVariants({ variant, className }))}
+      {...props}
+    />
+  )
+}
+
+function ItemContent({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="item-content"
+      className={cn(
+        "flex flex-1 flex-col gap-1 group-data-[size=xs]/item:gap-0 [&+[data-slot=item-content]]:flex-none",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function ItemTitle({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="item-title"
+      className={cn(
+        "line-clamp-1 flex w-fit items-center gap-2 text-sm leading-snug font-medium underline-offset-4",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function ItemDescription({ className, ...props }: React.ComponentProps<"p">) {
+  return (
+    <p
+      data-slot="item-description"
+      className={cn(
+        "line-clamp-2 text-left text-sm leading-normal font-normal text-muted-foreground group-data-[size=xs]/item:text-xs [&>a]:underline [&>a]:underline-offset-4 [&>a:hover]:text-primary",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function ItemActions({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="item-actions"
+      className={cn("flex items-center gap-2", className)}
+      {...props}
+    />
+  )
+}
+
+function ItemHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="item-header"
+      className={cn(
+        "flex basis-full items-center justify-between gap-2",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function ItemFooter({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="item-footer"
+      className={cn(
+        "flex basis-full items-center justify-between gap-2",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  Item,
+  ItemMedia,
+  ItemContent,
+  ItemActions,
+  ItemGroup,
+  ItemSeparator,
+  ItemTitle,
+  ItemDescription,
+  ItemHeader,
+  ItemFooter,
+}

frontend/src/components/ui/kbd.tsx

@@ -0,0 +1,26 @@
+import { cn } from "@/lib/utils"
+
+function Kbd({ className, ...props }: React.ComponentProps<"kbd">) {
+  return (
+    <kbd
+      data-slot="kbd"
+      className={cn(
+        "pointer-events-none inline-flex h-5 w-fit min-w-5 items-center justify-center gap-1 rounded-sm bg-muted px-1 font-sans text-xs font-medium text-muted-foreground select-none in-data-[slot=tooltip-content]:bg-background/20 in-data-[slot=tooltip-content]:text-background dark:in-data-[slot=tooltip-content]:bg-background/10 [&_svg:not([class*='size-'])]:size-3",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function KbdGroup({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <kbd
+      data-slot="kbd-group"
+      className={cn("inline-flex items-center gap-1", className)}
+      {...props}
+    />
+  )
+}
+
+export { Kbd, KbdGroup }

frontend/src/components/ui/label.tsx

@@ -0,0 +1,24 @@
+"use client"
+
+import * as React from "react"
+import { Label as LabelPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function Label({
+  className,
+  ...props
+}: React.ComponentProps<typeof LabelPrimitive.Root>) {
+  return (
+    <LabelPrimitive.Root
+      data-slot="label"
+      className={cn(
+        "flex items-center gap-2 text-sm leading-none font-medium select-none group-data-[disabled=true]:pointer-events-none group-data-[disabled=true]:opacity-50 peer-disabled:cursor-not-allowed peer-disabled:opacity-50",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Label }

frontend/src/components/ui/marker.tsx

@@ -0,0 +1,69 @@
+import * as React from "react"
+import { cva, type VariantProps } from "class-variance-authority"
+import { Slot } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+const markerVariants = cva(
+  "group/marker relative flex min-h-4 w-full items-center gap-2 text-left text-sm text-muted-foreground [&_svg:not([class*='size-'])]:size-4 [a]:underline [a]:underline-offset-3 [a]:hover:text-foreground",
+  {
+    variants: {
+      variant: {
+        default: "",
+        separator:
+          "before:mr-1 before:h-px before:min-w-0 before:flex-1 before:bg-border after:ml-1 after:h-px after:min-w-0 after:flex-1 after:bg-border",
+        border: "border-b border-border pb-2",
+      },
+    },
+  }
+)
+
+function Marker({
+  className,
+  variant = "default",
+  asChild = false,
+  ...props
+}: React.ComponentProps<"div"> &
+  VariantProps<typeof markerVariants> & {
+    asChild?: boolean
+  }) {
+  const Comp = asChild ? Slot.Root : "div"
+
+  return (
+    <Comp
+      data-slot="marker"
+      data-variant={variant}
+      className={cn(markerVariants({ variant, className }))}
+      {...props}
+    />
+  )
+}
+
+function MarkerIcon({ className, ...props }: React.ComponentProps<"span">) {
+  return (
+    <span
+      data-slot="marker-icon"
+      aria-hidden="true"
+      className={cn(
+        "size-4 shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function MarkerContent({ className, ...props }: React.ComponentProps<"span">) {
+  return (
+    <span
+      data-slot="marker-content"
+      className={cn(
+        "min-w-0 wrap-break-word group-data-[variant=separator]/marker:flex-none group-data-[variant=separator]/marker:text-center *:[a]:underline *:[a]:underline-offset-3 *:[a]:hover:text-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Marker, MarkerIcon, MarkerContent, markerVariants }

frontend/src/components/ui/menubar.tsx

@@ -0,0 +1,280 @@
+"use client"
+
+import * as React from "react"
+import { Menubar as MenubarPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { CheckIcon, ChevronRightIcon } from "lucide-react"
+
+function Menubar({
+  className,
+  ...props
+}: React.ComponentProps<typeof MenubarPrimitive.Root>) {
+  return (
+    <MenubarPrimitive.Root
+      data-slot="menubar"
+      className={cn(
+        "flex h-8 items-center gap-0.5 rounded-lg border p-[3px]",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function MenubarMenu({
+  ...props
+}: React.ComponentProps<typeof MenubarPrimitive.Menu>) {
+  return <MenubarPrimitive.Menu data-slot="menubar-menu" {...props} />
+}
+
+function MenubarGroup({
+  ...props
+}: React.ComponentProps<typeof MenubarPrimitive.Group>) {
+  return <MenubarPrimitive.Group data-slot="menubar-group" {...props} />
+}
+
+function MenubarPortal({
+  ...props
+}: React.ComponentProps<typeof MenubarPrimitive.Portal>) {
+  return <MenubarPrimitive.Portal data-slot="menubar-portal" {...props} />
+}
+
+function MenubarRadioGroup({
+  ...props
+}: React.ComponentProps<typeof MenubarPrimitive.RadioGroup>) {
+  return (
+    <MenubarPrimitive.RadioGroup data-slot="menubar-radio-group" {...props} />
+  )
+}
+
+function MenubarTrigger({
+  className,
+  ...props
+}: React.ComponentProps<typeof MenubarPrimitive.Trigger>) {
+  return (
+    <MenubarPrimitive.Trigger
+      data-slot="menubar-trigger"
+      className={cn(
+        "flex items-center rounded-sm px-1.5 py-[2px] text-sm font-medium outline-hidden select-none hover:bg-muted aria-expanded:bg-muted",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function MenubarContent({
+  className,
+  align = "start",
+  alignOffset = -4,
+  sideOffset = 8,
+  ...props
+}: React.ComponentProps<typeof MenubarPrimitive.Content>) {
+  return (
+    <MenubarPortal>
+      <MenubarPrimitive.Content
+        data-slot="menubar-content"
+        align={align}
+        alignOffset={alignOffset}
+        sideOffset={sideOffset}
+        className={cn("z-50 min-w-36 origin-(--radix-menubar-content-transform-origin) overflow-hidden rounded-lg bg-popover p-1 text-popover-foreground shadow-md ring-1 ring-foreground/10 duration-100 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95", className )}
+        {...props}
+      />
+    </MenubarPortal>
+  )
+}
+
+function MenubarItem({
+  className,
+  inset,
+  variant = "default",
+  ...props
+}: React.ComponentProps<typeof MenubarPrimitive.Item> & {
+  inset?: boolean
+  variant?: "default" | "destructive"
+}) {
+  return (
+    <MenubarPrimitive.Item
+      data-slot="menubar-item"
+      data-inset={inset}
+      data-variant={variant}
+      className={cn(
+        "group/menubar-item relative flex cursor-default items-center gap-1.5 rounded-md px-1.5 py-1 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground not-data-[variant=destructive]:focus:**:text-accent-foreground data-inset:pl-7 data-[variant=destructive]:text-destructive data-[variant=destructive]:focus:bg-destructive/10 data-[variant=destructive]:focus:text-destructive dark:data-[variant=destructive]:focus:bg-destructive/20 data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4 data-[variant=destructive]:*:[svg]:text-destructive!",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function MenubarCheckboxItem({
+  className,
+  children,
+  checked,
+  inset,
+  ...props
+}: React.ComponentProps<typeof MenubarPrimitive.CheckboxItem> & {
+  inset?: boolean
+}) {
+  return (
+    <MenubarPrimitive.CheckboxItem
+      data-slot="menubar-checkbox-item"
+      data-inset={inset}
+      className={cn(
+        "relative flex cursor-default items-center gap-1.5 rounded-md py-1 pr-1.5 pl-7 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground focus:**:text-accent-foreground data-inset:pl-7 data-disabled:pointer-events-none [&_svg]:pointer-events-none [&_svg]:shrink-0",
+        className
+      )}
+      checked={checked}
+      {...props}
+    >
+      <span className="pointer-events-none absolute left-1.5 flex size-4 items-center justify-center [&_svg:not([class*='size-'])]:size-4">
+        <MenubarPrimitive.ItemIndicator>
+          <CheckIcon
+          />
+        </MenubarPrimitive.ItemIndicator>
+      </span>
+      {children}
+    </MenubarPrimitive.CheckboxItem>
+  )
+}
+
+function MenubarRadioItem({
+  className,
+  children,
+  inset,
+  ...props
+}: React.ComponentProps<typeof MenubarPrimitive.RadioItem> & {
+  inset?: boolean
+}) {
+  return (
+    <MenubarPrimitive.RadioItem
+      data-slot="menubar-radio-item"
+      data-inset={inset}
+      className={cn(
+        "relative flex cursor-default items-center gap-1.5 rounded-md py-1 pr-1.5 pl-7 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground focus:**:text-accent-foreground data-inset:pl-7 data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      <span className="pointer-events-none absolute left-1.5 flex size-4 items-center justify-center [&_svg:not([class*='size-'])]:size-4">
+        <MenubarPrimitive.ItemIndicator>
+          <CheckIcon
+          />
+        </MenubarPrimitive.ItemIndicator>
+      </span>
+      {children}
+    </MenubarPrimitive.RadioItem>
+  )
+}
+
+function MenubarLabel({
+  className,
+  inset,
+  ...props
+}: React.ComponentProps<typeof MenubarPrimitive.Label> & {
+  inset?: boolean
+}) {
+  return (
+    <MenubarPrimitive.Label
+      data-slot="menubar-label"
+      data-inset={inset}
+      className={cn(
+        "px-1.5 py-1 text-sm font-medium data-inset:pl-7",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function MenubarSeparator({
+  className,
+  ...props
+}: React.ComponentProps<typeof MenubarPrimitive.Separator>) {
+  return (
+    <MenubarPrimitive.Separator
+      data-slot="menubar-separator"
+      className={cn("-mx-1 my-1 h-px bg-border", className)}
+      {...props}
+    />
+  )
+}
+
+function MenubarShortcut({
+  className,
+  ...props
+}: React.ComponentProps<"span">) {
+  return (
+    <span
+      data-slot="menubar-shortcut"
+      className={cn(
+        "ml-auto text-xs tracking-widest text-muted-foreground group-focus/menubar-item:text-accent-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function MenubarSub({
+  ...props
+}: React.ComponentProps<typeof MenubarPrimitive.Sub>) {
+  return <MenubarPrimitive.Sub data-slot="menubar-sub" {...props} />
+}
+
+function MenubarSubTrigger({
+  className,
+  inset,
+  children,
+  ...props
+}: React.ComponentProps<typeof MenubarPrimitive.SubTrigger> & {
+  inset?: boolean
+}) {
+  return (
+    <MenubarPrimitive.SubTrigger
+      data-slot="menubar-sub-trigger"
+      data-inset={inset}
+      className={cn(
+        "flex cursor-default items-center gap-1.5 rounded-md px-1.5 py-1 text-sm outline-none select-none focus:bg-accent focus:text-accent-foreground data-inset:pl-7 data-open:bg-accent data-open:text-accent-foreground [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      {children}
+      <ChevronRightIcon className="ml-auto size-4" />
+    </MenubarPrimitive.SubTrigger>
+  )
+}
+
+function MenubarSubContent({
+  className,
+  ...props
+}: React.ComponentProps<typeof MenubarPrimitive.SubContent>) {
+  return (
+    <MenubarPrimitive.SubContent
+      data-slot="menubar-sub-content"
+      className={cn("z-50 min-w-32 origin-(--radix-menubar-content-transform-origin) overflow-hidden rounded-lg bg-popover p-1 text-popover-foreground shadow-lg ring-1 ring-foreground/10 duration-100 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95", className )}
+      {...props}
+    />
+  )
+}
+
+export {
+  Menubar,
+  MenubarPortal,
+  MenubarMenu,
+  MenubarTrigger,
+  MenubarContent,
+  MenubarGroup,
+  MenubarSeparator,
+  MenubarLabel,
+  MenubarItem,
+  MenubarShortcut,
+  MenubarCheckboxItem,
+  MenubarRadioGroup,
+  MenubarRadioItem,
+  MenubarSub,
+  MenubarSubTrigger,
+  MenubarSubContent,
+}

frontend/src/components/ui/message-scroller.tsx

@@ -0,0 +1,131 @@
+"use client"
+
+import * as React from "react"
+import {
+  MessageScroller as MessageScrollerPrimitive,
+  useMessageScroller,
+  useMessageScrollerScrollable,
+  useMessageScrollerVisibility,
+} from "@shadcn/react/message-scroller"
+
+import { cn } from "@/lib/utils"
+import { Button } from "@/components/ui/button"
+import { ArrowDownIcon } from "lucide-react"
+
+function MessageScrollerProvider(
+  props: React.ComponentProps<typeof MessageScrollerPrimitive.Provider>
+) {
+  return <MessageScrollerPrimitive.Provider {...props} />
+}
+
+function MessageScroller({
+  className,
+  ...props
+}: React.ComponentProps<typeof MessageScrollerPrimitive.Root>) {
+  return (
+    <MessageScrollerPrimitive.Root
+      data-slot="message-scroller"
+      className={cn(
+        "group/message-scroller relative flex size-full min-h-0 flex-col overflow-hidden",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function MessageScrollerViewport({
+  className,
+  ...props
+}: React.ComponentProps<typeof MessageScrollerPrimitive.Viewport>) {
+  return (
+    <MessageScrollerPrimitive.Viewport
+      data-slot="message-scroller-viewport"
+      className={cn(
+        "size-full min-h-0 min-w-0 scroll-fade-b scrollbar-thin scrollbar-gutter-stable overflow-y-auto overscroll-contain contain-content data-autoscrolling:scrollbar-thumb-transparent data-autoscrolling:scrollbar-track-transparent",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function MessageScrollerContent({
+  className,
+  ...props
+}: React.ComponentProps<typeof MessageScrollerPrimitive.Content>) {
+  return (
+    <MessageScrollerPrimitive.Content
+      data-slot="message-scroller-content"
+      className={cn("flex h-max min-h-full flex-col gap-6", className)}
+      {...props}
+    />
+  )
+}
+
+function MessageScrollerItem({
+  className,
+  scrollAnchor = false,
+  ...props
+}: React.ComponentProps<typeof MessageScrollerPrimitive.Item>) {
+  return (
+    <MessageScrollerPrimitive.Item
+      data-slot="message-scroller-item"
+      scrollAnchor={scrollAnchor}
+      className={cn(
+        "min-w-0 shrink-0 [contain-intrinsic-size:auto_10rem] [content-visibility:auto]",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function MessageScrollerButton({
+  direction = "end",
+  className,
+  children,
+  render,
+  variant = "secondary",
+  size = "icon-sm",
+  ...props
+}: React.ComponentProps<typeof MessageScrollerPrimitive.Button> &
+  Pick<React.ComponentProps<typeof Button>, "variant" | "size">) {
+  return (
+    <MessageScrollerPrimitive.Button
+      data-slot="message-scroller-button"
+      data-direction={direction}
+      data-variant={variant}
+      data-size={size}
+      direction={direction}
+      className={cn(
+        "absolute inset-s-1/2 -translate-x-1/2 border-border bg-background text-foreground transition-[translate,scale,opacity] duration-200 hover:bg-muted hover:text-foreground data-[active=false]:pointer-events-none data-[active=false]:scale-95 data-[active=false]:opacity-0 data-[active=false]:duration-400 data-[active=false]:ease-[cubic-bezier(0.7,0,0.84,0)] data-[active=true]:translate-y-0 data-[active=true]:scale-100 data-[active=true]:opacity-100 data-[active=true]:ease-[cubic-bezier(0.23,1,0.32,1)] data-[direction=end]:bottom-4 data-[direction=end]:data-[active=false]:translate-y-full data-[direction=start]:top-4 data-[direction=start]:data-[active=false]:-translate-y-full rtl:translate-x-1/2 data-[direction=start]:[&_svg]:rotate-180",
+        className
+      )}
+      render={render ?? <Button variant={variant} size={size} />}
+      {...props}
+    >
+      {children ?? (
+        <>
+          <ArrowDownIcon
+          />
+          <span className="sr-only">
+            {direction === "end" ? "Scroll to end" : "Scroll to start"}
+          </span>
+        </>
+      )}
+    </MessageScrollerPrimitive.Button>
+  )
+}
+
+export {
+  MessageScrollerProvider,
+  MessageScroller,
+  MessageScrollerViewport,
+  MessageScrollerContent,
+  MessageScrollerItem,
+  MessageScrollerButton,
+  useMessageScroller,
+  useMessageScrollerScrollable,
+  useMessageScrollerVisibility,
+}

frontend/src/components/ui/message.tsx

@@ -0,0 +1,92 @@
+import * as React from "react"
+
+import { cn } from "@/lib/utils"
+
+function MessageGroup({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="message-group"
+      className={cn("flex min-w-0 flex-col gap-2", className)}
+      {...props}
+    />
+  )
+}
+
+function Message({
+  className,
+  align = "start",
+  ...props
+}: React.ComponentProps<"div"> & { align?: "start" | "end" }) {
+  return (
+    <div
+      data-slot="message"
+      data-align={align}
+      className={cn(
+        "group/message relative flex w-full min-w-0 gap-2 text-sm data-[align=end]:flex-row-reverse",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function MessageAvatar({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="message-avatar"
+      className={cn(
+        "flex w-fit min-w-8 shrink-0 items-center justify-center self-end overflow-hidden rounded-full bg-muted group-has-data-[slot=message-footer]/message:-translate-y-8",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function MessageContent({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="message-content"
+      className={cn(
+        "flex w-full min-w-0 flex-col gap-2.5 wrap-break-word group-data-[align=end]/message:*:data-slot:self-end",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function MessageHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="message-header"
+      className={cn(
+        "flex max-w-full min-w-0 items-center px-3 text-xs font-medium text-muted-foreground group-has-data-[variant=ghost]/message:px-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function MessageFooter({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="message-footer"
+      className={cn(
+        "flex max-w-full min-w-0 items-center px-3 text-xs font-medium text-muted-foreground group-has-data-[variant=ghost]/message:px-0 group-data-[align=end]/message:justify-end",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  MessageGroup,
+  Message,
+  MessageAvatar,
+  MessageContent,
+  MessageFooter,
+  MessageHeader,
+}

frontend/src/components/ui/native-select.tsx

@@ -0,0 +1,61 @@
+import * as React from "react"
+
+import { cn } from "@/lib/utils"
+import { ChevronDownIcon } from "lucide-react"
+
+type NativeSelectProps = Omit<React.ComponentProps<"select">, "size"> & {
+  size?: "sm" | "default"
+}
+
+function NativeSelect({
+  className,
+  size = "default",
+  ...props
+}: NativeSelectProps) {
+  return (
+    <div
+      className={cn(
+        "group/native-select relative w-fit has-[select:disabled]:opacity-50",
+        className
+      )}
+      data-slot="native-select-wrapper"
+      data-size={size}
+    >
+      <select
+        data-slot="native-select"
+        data-size={size}
+        className="h-8 w-full min-w-0 appearance-none rounded-lg border border-input bg-transparent py-1 pr-8 pl-2.5 text-sm transition-colors outline-none select-none selection:bg-primary selection:text-primary-foreground placeholder:text-muted-foreground focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 disabled:pointer-events-none disabled:cursor-not-allowed aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20 data-[size=sm]:h-7 data-[size=sm]:rounded-[min(var(--radius-md),10px)] data-[size=sm]:py-0.5 dark:bg-input/30 dark:hover:bg-input/50 dark:aria-invalid:border-destructive/50 dark:aria-invalid:ring-destructive/40"
+        {...props}
+      />
+      <ChevronDownIcon className="pointer-events-none absolute top-1/2 right-2.5 size-4 -translate-y-1/2 text-muted-foreground select-none" aria-hidden="true" data-slot="native-select-icon" />
+    </div>
+  )
+}
+
+function NativeSelectOption({
+  className,
+  ...props
+}: React.ComponentProps<"option">) {
+  return (
+    <option
+      data-slot="native-select-option"
+      className={cn("bg-[Canvas] text-[CanvasText]", className)}
+      {...props}
+    />
+  )
+}
+
+function NativeSelectOptGroup({
+  className,
+  ...props
+}: React.ComponentProps<"optgroup">) {
+  return (
+    <optgroup
+      data-slot="native-select-optgroup"
+      className={cn("bg-[Canvas] text-[CanvasText]", className)}
+      {...props}
+    />
+  )
+}
+
+export { NativeSelect, NativeSelectOptGroup, NativeSelectOption }

frontend/src/components/ui/navigation-menu.tsx

@@ -0,0 +1,164 @@
+import * as React from "react"
+import { cva } from "class-variance-authority"
+import { NavigationMenu as NavigationMenuPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { ChevronDownIcon } from "lucide-react"
+
+function NavigationMenu({
+  className,
+  children,
+  viewport = true,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Root> & {
+  viewport?: boolean
+}) {
+  return (
+    <NavigationMenuPrimitive.Root
+      data-slot="navigation-menu"
+      data-viewport={viewport}
+      className={cn(
+        "group/navigation-menu relative flex max-w-max flex-1 items-center justify-center",
+        className
+      )}
+      {...props}
+    >
+      {children}
+      {viewport && <NavigationMenuViewport />}
+    </NavigationMenuPrimitive.Root>
+  )
+}
+
+function NavigationMenuList({
+  className,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.List>) {
+  return (
+    <NavigationMenuPrimitive.List
+      data-slot="navigation-menu-list"
+      className={cn(
+        "group flex flex-1 list-none items-center justify-center gap-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function NavigationMenuItem({
+  className,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Item>) {
+  return (
+    <NavigationMenuPrimitive.Item
+      data-slot="navigation-menu-item"
+      className={cn("relative", className)}
+      {...props}
+    />
+  )
+}
+
+const navigationMenuTriggerStyle = cva(
+  "group/navigation-menu-trigger inline-flex h-9 w-max items-center justify-center rounded-lg px-2.5 py-1.5 text-sm font-medium transition-all outline-none hover:bg-muted focus:bg-muted focus-visible:ring-3 focus-visible:ring-ring/50 focus-visible:outline-1 disabled:pointer-events-none disabled:opacity-50 data-popup-open:bg-muted/50 data-popup-open:hover:bg-muted data-open:bg-muted/50 data-open:hover:bg-muted data-open:focus:bg-muted"
+)
+
+function NavigationMenuTrigger({
+  className,
+  children,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Trigger>) {
+  return (
+    <NavigationMenuPrimitive.Trigger
+      data-slot="navigation-menu-trigger"
+      className={cn(navigationMenuTriggerStyle(), "group", className)}
+      {...props}
+    >
+      {children}{" "}
+      <ChevronDownIcon className="relative top-px ml-1 size-3 transition duration-300 group-data-popup-open/navigation-menu-trigger:rotate-180 group-data-open/navigation-menu-trigger:rotate-180" aria-hidden="true" />
+    </NavigationMenuPrimitive.Trigger>
+  )
+}
+
+function NavigationMenuContent({
+  className,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Content>) {
+  return (
+    <NavigationMenuPrimitive.Content
+      data-slot="navigation-menu-content"
+      className={cn(
+        "top-0 left-0 w-full p-1 ease-[cubic-bezier(0.22,1,0.36,1)] group-data-[viewport=false]/navigation-menu:top-full group-data-[viewport=false]/navigation-menu:mt-1.5 group-data-[viewport=false]/navigation-menu:overflow-hidden group-data-[viewport=false]/navigation-menu:rounded-lg group-data-[viewport=false]/navigation-menu:bg-popover group-data-[viewport=false]/navigation-menu:text-popover-foreground group-data-[viewport=false]/navigation-menu:shadow group-data-[viewport=false]/navigation-menu:ring-1 group-data-[viewport=false]/navigation-menu:ring-foreground/10 group-data-[viewport=false]/navigation-menu:duration-300 data-[motion=from-end]:slide-in-from-right-52 data-[motion=from-start]:slide-in-from-left-52 data-[motion=to-end]:slide-out-to-right-52 data-[motion=to-start]:slide-out-to-left-52 data-[motion^=from-]:animate-in data-[motion^=from-]:fade-in data-[motion^=to-]:animate-out data-[motion^=to-]:fade-out **:data-[slot=navigation-menu-link]:focus:ring-0 **:data-[slot=navigation-menu-link]:focus:outline-none md:absolute md:w-auto group-data-[viewport=false]/navigation-menu:data-open:animate-in group-data-[viewport=false]/navigation-menu:data-open:fade-in-0 group-data-[viewport=false]/navigation-menu:data-open:zoom-in-95 group-data-[viewport=false]/navigation-menu:data-closed:animate-out group-data-[viewport=false]/navigation-menu:data-closed:fade-out-0 group-data-[viewport=false]/navigation-menu:data-closed:zoom-out-95",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function NavigationMenuViewport({
+  className,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Viewport>) {
+  return (
+    <div
+      className={cn(
+        "absolute top-full left-0 isolate z-50 flex justify-center"
+      )}
+    >
+      <NavigationMenuPrimitive.Viewport
+        data-slot="navigation-menu-viewport"
+        className={cn(
+          "origin-top-center relative mt-1.5 h-(--radix-navigation-menu-viewport-height) w-full overflow-hidden rounded-lg bg-popover text-popover-foreground shadow ring-1 ring-foreground/10 duration-100 md:w-(--radix-navigation-menu-viewport-width) data-open:animate-in data-open:zoom-in-90 data-closed:animate-out data-closed:zoom-out-90",
+          className
+        )}
+        {...props}
+      />
+    </div>
+  )
+}
+
+function NavigationMenuLink({
+  className,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Link>) {
+  return (
+    <NavigationMenuPrimitive.Link
+      data-slot="navigation-menu-link"
+      className={cn(
+        "flex items-center gap-2 rounded-lg p-2 text-sm transition-all outline-none hover:bg-muted focus:bg-muted focus-visible:ring-3 focus-visible:ring-ring/50 focus-visible:outline-1 in-data-[slot=navigation-menu-content]:rounded-md data-active:bg-muted/50 data-active:hover:bg-muted data-active:focus:bg-muted [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function NavigationMenuIndicator({
+  className,
+  ...props
+}: React.ComponentProps<typeof NavigationMenuPrimitive.Indicator>) {
+  return (
+    <NavigationMenuPrimitive.Indicator
+      data-slot="navigation-menu-indicator"
+      className={cn(
+        "top-full z-1 flex h-1.5 items-end justify-center overflow-hidden data-[state=hidden]:animate-out data-[state=hidden]:fade-out data-[state=visible]:animate-in data-[state=visible]:fade-in",
+        className
+      )}
+      {...props}
+    >
+      <div className="relative top-[60%] h-2 w-2 rotate-45 rounded-tl-sm bg-border shadow-md" />
+    </NavigationMenuPrimitive.Indicator>
+  )
+}
+
+export {
+  NavigationMenu,
+  NavigationMenuList,
+  NavigationMenuItem,
+  NavigationMenuContent,
+  NavigationMenuTrigger,
+  NavigationMenuLink,
+  NavigationMenuIndicator,
+  NavigationMenuViewport,
+  navigationMenuTriggerStyle,
+}

frontend/src/components/ui/pagination.tsx

@@ -0,0 +1,129 @@
+import * as React from "react"
+
+import { cn } from "@/lib/utils"
+import { Button } from "@/components/ui/button"
+import { ChevronLeftIcon, ChevronRightIcon, MoreHorizontalIcon } from "lucide-react"
+
+function Pagination({ className, ...props }: React.ComponentProps<"nav">) {
+  return (
+    <nav
+      role="navigation"
+      aria-label="pagination"
+      data-slot="pagination"
+      className={cn("mx-auto flex w-full justify-center", className)}
+      {...props}
+    />
+  )
+}
+
+function PaginationContent({
+  className,
+  ...props
+}: React.ComponentProps<"ul">) {
+  return (
+    <ul
+      data-slot="pagination-content"
+      className={cn("flex items-center gap-0.5", className)}
+      {...props}
+    />
+  )
+}
+
+function PaginationItem({ ...props }: React.ComponentProps<"li">) {
+  return <li data-slot="pagination-item" {...props} />
+}
+
+type PaginationLinkProps = {
+  isActive?: boolean
+} & Pick<React.ComponentProps<typeof Button>, "size"> &
+  React.ComponentProps<"a">
+
+function PaginationLink({
+  className,
+  isActive,
+  size = "icon",
+  ...props
+}: PaginationLinkProps) {
+  return (
+    <Button
+      asChild
+      variant={isActive ? "outline" : "ghost"}
+      size={size}
+      className={cn(className)}
+    >
+      <a
+        aria-current={isActive ? "page" : undefined}
+        data-slot="pagination-link"
+        data-active={isActive}
+        {...props}
+      />
+    </Button>
+  )
+}
+
+function PaginationPrevious({
+  className,
+  text = "Previous",
+  ...props
+}: React.ComponentProps<typeof PaginationLink> & { text?: string }) {
+  return (
+    <PaginationLink
+      aria-label="Go to previous page"
+      size="default"
+      className={cn("pl-1.5!", className)}
+      {...props}
+    >
+      <ChevronLeftIcon data-icon="inline-start" />
+      <span className="hidden sm:block">{text}</span>
+    </PaginationLink>
+  )
+}
+
+function PaginationNext({
+  className,
+  text = "Next",
+  ...props
+}: React.ComponentProps<typeof PaginationLink> & { text?: string }) {
+  return (
+    <PaginationLink
+      aria-label="Go to next page"
+      size="default"
+      className={cn("pr-1.5!", className)}
+      {...props}
+    >
+      <span className="hidden sm:block">{text}</span>
+      <ChevronRightIcon data-icon="inline-end" />
+    </PaginationLink>
+  )
+}
+
+function PaginationEllipsis({
+  className,
+  ...props
+}: React.ComponentProps<"span">) {
+  return (
+    <span
+      aria-hidden
+      data-slot="pagination-ellipsis"
+      className={cn(
+        "flex size-8 items-center justify-center [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      <MoreHorizontalIcon
+      />
+      <span className="sr-only">More pages</span>
+    </span>
+  )
+}
+
+export {
+  Pagination,
+  PaginationContent,
+  PaginationEllipsis,
+  PaginationItem,
+  PaginationLink,
+  PaginationNext,
+  PaginationPrevious,
+}

frontend/src/components/ui/popover.tsx

@@ -0,0 +1,89 @@
+"use client"
+
+import * as React from "react"
+import { Popover as PopoverPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function Popover({
+  ...props
+}: React.ComponentProps<typeof PopoverPrimitive.Root>) {
+  return <PopoverPrimitive.Root data-slot="popover" {...props} />
+}
+
+function PopoverTrigger({
+  ...props
+}: React.ComponentProps<typeof PopoverPrimitive.Trigger>) {
+  return <PopoverPrimitive.Trigger data-slot="popover-trigger" {...props} />
+}
+
+function PopoverContent({
+  className,
+  align = "center",
+  sideOffset = 4,
+  ...props
+}: React.ComponentProps<typeof PopoverPrimitive.Content>) {
+  return (
+    <PopoverPrimitive.Portal>
+      <PopoverPrimitive.Content
+        data-slot="popover-content"
+        align={align}
+        sideOffset={sideOffset}
+        className={cn(
+          "z-50 flex w-72 origin-(--radix-popover-content-transform-origin) flex-col gap-2.5 rounded-lg bg-popover p-2.5 text-sm text-popover-foreground shadow-md ring-1 ring-foreground/10 outline-hidden duration-100 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95",
+          className
+        )}
+        {...props}
+      />
+    </PopoverPrimitive.Portal>
+  )
+}
+
+function PopoverAnchor({
+  ...props
+}: React.ComponentProps<typeof PopoverPrimitive.Anchor>) {
+  return <PopoverPrimitive.Anchor data-slot="popover-anchor" {...props} />
+}
+
+function PopoverHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="popover-header"
+      className={cn("flex flex-col gap-0.5 text-sm", className)}
+      {...props}
+    />
+  )
+}
+
+function PopoverTitle({ className, ...props }: React.ComponentProps<"h2">) {
+  return (
+    <div
+      data-slot="popover-title"
+      className={cn("font-medium", className)}
+      {...props}
+    />
+  )
+}
+
+function PopoverDescription({
+  className,
+  ...props
+}: React.ComponentProps<"p">) {
+  return (
+    <p
+      data-slot="popover-description"
+      className={cn("text-muted-foreground", className)}
+      {...props}
+    />
+  )
+}
+
+export {
+  Popover,
+  PopoverAnchor,
+  PopoverContent,
+  PopoverDescription,
+  PopoverHeader,
+  PopoverTitle,
+  PopoverTrigger,
+}

frontend/src/components/ui/progress.tsx

@@ -0,0 +1,31 @@
+"use client"
+
+import * as React from "react"
+import { Progress as ProgressPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function Progress({
+  className,
+  value,
+  ...props
+}: React.ComponentProps<typeof ProgressPrimitive.Root>) {
+  return (
+    <ProgressPrimitive.Root
+      data-slot="progress"
+      className={cn(
+        "relative flex h-1 w-full items-center overflow-x-hidden rounded-full bg-muted",
+        className
+      )}
+      {...props}
+    >
+      <ProgressPrimitive.Indicator
+        data-slot="progress-indicator"
+        className="size-full flex-1 bg-primary transition-all"
+        style={{ transform: `translateX(-${100 - (value || 0)}%)` }}
+      />
+    </ProgressPrimitive.Root>
+  )
+}
+
+export { Progress }

frontend/src/components/ui/radio-group.tsx

@@ -0,0 +1,44 @@
+"use client"
+
+import * as React from "react"
+import { RadioGroup as RadioGroupPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function RadioGroup({
+  className,
+  ...props
+}: React.ComponentProps<typeof RadioGroupPrimitive.Root>) {
+  return (
+    <RadioGroupPrimitive.Root
+      data-slot="radio-group"
+      className={cn("grid w-full gap-2", className)}
+      {...props}
+    />
+  )
+}
+
+function RadioGroupItem({
+  className,
+  ...props
+}: React.ComponentProps<typeof RadioGroupPrimitive.Item>) {
+  return (
+    <RadioGroupPrimitive.Item
+      data-slot="radio-group-item"
+      className={cn(
+        "group/radio-group-item peer relative flex aspect-square size-4 shrink-0 rounded-full border border-input outline-none after:absolute after:-inset-x-3 after:-inset-y-2 focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 disabled:cursor-not-allowed disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20 aria-invalid:aria-checked:border-primary dark:bg-input/30 dark:aria-invalid:border-destructive/50 dark:aria-invalid:ring-destructive/40 data-checked:border-primary data-checked:bg-primary data-checked:text-primary-foreground dark:data-checked:bg-primary",
+        className
+      )}
+      {...props}
+    >
+      <RadioGroupPrimitive.Indicator
+        data-slot="radio-group-indicator"
+        className="flex size-4 items-center justify-center"
+      >
+        <span className="absolute top-1/2 left-1/2 size-2 -translate-x-1/2 -translate-y-1/2 rounded-full bg-primary-foreground" />
+      </RadioGroupPrimitive.Indicator>
+    </RadioGroupPrimitive.Item>
+  )
+}
+
+export { RadioGroup, RadioGroupItem }

frontend/src/components/ui/resizable.tsx

@@ -0,0 +1,50 @@
+"use client"
+
+import * as ResizablePrimitive from "react-resizable-panels"
+
+import { cn } from "@/lib/utils"
+
+function ResizablePanelGroup({
+  className,
+  ...props
+}: ResizablePrimitive.GroupProps) {
+  return (
+    <ResizablePrimitive.Group
+      data-slot="resizable-panel-group"
+      className={cn(
+        "flex h-full w-full aria-[orientation=vertical]:flex-col",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function ResizablePanel({ ...props }: ResizablePrimitive.PanelProps) {
+  return <ResizablePrimitive.Panel data-slot="resizable-panel" {...props} />
+}
+
+function ResizableHandle({
+  withHandle,
+  className,
+  ...props
+}: ResizablePrimitive.SeparatorProps & {
+  withHandle?: boolean
+}) {
+  return (
+    <ResizablePrimitive.Separator
+      data-slot="resizable-handle"
+      className={cn(
+        "relative flex w-px items-center justify-center bg-border ring-offset-background after:absolute after:inset-y-0 after:left-1/2 after:w-1 after:-translate-x-1/2 focus-visible:ring-1 focus-visible:ring-ring focus-visible:outline-hidden aria-[orientation=horizontal]:h-px aria-[orientation=horizontal]:w-full aria-[orientation=horizontal]:after:left-0 aria-[orientation=horizontal]:after:h-1 aria-[orientation=horizontal]:after:w-full aria-[orientation=horizontal]:after:translate-x-0 aria-[orientation=horizontal]:after:-translate-y-1/2 [&[aria-orientation=horizontal]>div]:rotate-90",
+        className
+      )}
+      {...props}
+    >
+      {withHandle && (
+        <div className="z-10 flex h-6 w-1 shrink-0 rounded-lg bg-border" />
+      )}
+    </ResizablePrimitive.Separator>
+  )
+}
+
+export { ResizableHandle, ResizablePanel, ResizablePanelGroup }

frontend/src/components/ui/scroll-area.tsx

@@ -0,0 +1,55 @@
+"use client"
+
+import * as React from "react"
+import { ScrollArea as ScrollAreaPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function ScrollArea({
+  className,
+  children,
+  ...props
+}: React.ComponentProps<typeof ScrollAreaPrimitive.Root>) {
+  return (
+    <ScrollAreaPrimitive.Root
+      data-slot="scroll-area"
+      className={cn("relative", className)}
+      {...props}
+    >
+      <ScrollAreaPrimitive.Viewport
+        data-slot="scroll-area-viewport"
+        className="size-full rounded-[inherit] transition-[color,box-shadow] outline-none focus-visible:ring-[3px] focus-visible:ring-ring/50 focus-visible:outline-1"
+      >
+        {children}
+      </ScrollAreaPrimitive.Viewport>
+      <ScrollBar />
+      <ScrollAreaPrimitive.Corner />
+    </ScrollAreaPrimitive.Root>
+  )
+}
+
+function ScrollBar({
+  className,
+  orientation = "vertical",
+  ...props
+}: React.ComponentProps<typeof ScrollAreaPrimitive.ScrollAreaScrollbar>) {
+  return (
+    <ScrollAreaPrimitive.ScrollAreaScrollbar
+      data-slot="scroll-area-scrollbar"
+      data-orientation={orientation}
+      orientation={orientation}
+      className={cn(
+        "flex touch-none p-px transition-colors select-none data-horizontal:h-2.5 data-horizontal:flex-col data-horizontal:border-t data-horizontal:border-t-transparent data-vertical:h-full data-vertical:w-2.5 data-vertical:border-l data-vertical:border-l-transparent",
+        className
+      )}
+      {...props}
+    >
+      <ScrollAreaPrimitive.ScrollAreaThumb
+        data-slot="scroll-area-thumb"
+        className="relative flex-1 rounded-full bg-border"
+      />
+    </ScrollAreaPrimitive.ScrollAreaScrollbar>
+  )
+}
+
+export { ScrollArea, ScrollBar }

frontend/src/components/ui/select.tsx

@@ -0,0 +1,192 @@
+"use client"
+
+import * as React from "react"
+import { Select as SelectPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { ChevronDownIcon, CheckIcon, ChevronUpIcon } from "lucide-react"
+
+function Select({
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Root>) {
+  return <SelectPrimitive.Root data-slot="select" {...props} />
+}
+
+function SelectGroup({
+  className,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Group>) {
+  return (
+    <SelectPrimitive.Group
+      data-slot="select-group"
+      className={cn("scroll-my-1 p-1", className)}
+      {...props}
+    />
+  )
+}
+
+function SelectValue({
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Value>) {
+  return <SelectPrimitive.Value data-slot="select-value" {...props} />
+}
+
+function SelectTrigger({
+  className,
+  size = "default",
+  children,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Trigger> & {
+  size?: "sm" | "default"
+}) {
+  return (
+    <SelectPrimitive.Trigger
+      data-slot="select-trigger"
+      data-size={size}
+      className={cn(
+        "flex w-fit items-center justify-between gap-1.5 rounded-lg border border-input bg-transparent py-2 pr-2 pl-2.5 text-sm whitespace-nowrap transition-colors outline-none select-none focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 disabled:cursor-not-allowed disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20 data-placeholder:text-muted-foreground data-[size=default]:h-8 data-[size=sm]:h-7 data-[size=sm]:rounded-[min(var(--radius-md),10px)] *:data-[slot=select-value]:line-clamp-1 *:data-[slot=select-value]:flex *:data-[slot=select-value]:items-center *:data-[slot=select-value]:gap-1.5 dark:bg-input/30 dark:hover:bg-input/50 dark:aria-invalid:border-destructive/50 dark:aria-invalid:ring-destructive/40 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      {children}
+      <SelectPrimitive.Icon asChild>
+        <ChevronDownIcon className="pointer-events-none size-4 text-muted-foreground" />
+      </SelectPrimitive.Icon>
+    </SelectPrimitive.Trigger>
+  )
+}
+
+function SelectContent({
+  className,
+  children,
+  position = "item-aligned",
+  align = "center",
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Content>) {
+  return (
+    <SelectPrimitive.Portal>
+      <SelectPrimitive.Content
+        data-slot="select-content"
+        data-align-trigger={position === "item-aligned"}
+        className={cn("relative z-50 max-h-(--radix-select-content-available-height) min-w-36 origin-(--radix-select-content-transform-origin) overflow-x-hidden overflow-y-auto rounded-lg bg-popover text-popover-foreground shadow-md ring-1 ring-foreground/10 duration-100 data-[align-trigger=true]:animate-none data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95", position ==="popper"&&"data-[side=bottom]:translate-y-1 data-[side=left]:-translate-x-1 data-[side=right]:translate-x-1 data-[side=top]:-translate-y-1", className )}
+        position={position}
+        align={align}
+        {...props}
+      >
+        <SelectScrollUpButton />
+        <SelectPrimitive.Viewport
+          data-position={position}
+          className={cn(
+            "data-[position=popper]:h-(--radix-select-trigger-height) data-[position=popper]:w-full data-[position=popper]:min-w-(--radix-select-trigger-width)",
+            position === "popper" && ""
+          )}
+        >
+          {children}
+        </SelectPrimitive.Viewport>
+        <SelectScrollDownButton />
+      </SelectPrimitive.Content>
+    </SelectPrimitive.Portal>
+  )
+}
+
+function SelectLabel({
+  className,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Label>) {
+  return (
+    <SelectPrimitive.Label
+      data-slot="select-label"
+      className={cn("px-1.5 py-1 text-xs text-muted-foreground", className)}
+      {...props}
+    />
+  )
+}
+
+function SelectItem({
+  className,
+  children,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Item>) {
+  return (
+    <SelectPrimitive.Item
+      data-slot="select-item"
+      className={cn(
+        "relative flex w-full cursor-default items-center gap-1.5 rounded-md py-1 pr-8 pl-1.5 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground not-data-[variant=destructive]:focus:**:text-accent-foreground data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4 *:[span]:last:flex *:[span]:last:items-center *:[span]:last:gap-2",
+        className
+      )}
+      {...props}
+    >
+      <span className="pointer-events-none absolute right-2 flex size-4 items-center justify-center">
+        <SelectPrimitive.ItemIndicator>
+          <CheckIcon className="pointer-events-none" />
+        </SelectPrimitive.ItemIndicator>
+      </span>
+      <SelectPrimitive.ItemText>{children}</SelectPrimitive.ItemText>
+    </SelectPrimitive.Item>
+  )
+}
+
+function SelectSeparator({
+  className,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Separator>) {
+  return (
+    <SelectPrimitive.Separator
+      data-slot="select-separator"
+      className={cn("pointer-events-none -mx-1 my-1 h-px bg-border", className)}
+      {...props}
+    />
+  )
+}
+
+function SelectScrollUpButton({
+  className,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.ScrollUpButton>) {
+  return (
+    <SelectPrimitive.ScrollUpButton
+      data-slot="select-scroll-up-button"
+      className={cn(
+        "z-10 flex cursor-default items-center justify-center bg-popover py-1 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      <ChevronUpIcon
+      />
+    </SelectPrimitive.ScrollUpButton>
+  )
+}
+
+function SelectScrollDownButton({
+  className,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.ScrollDownButton>) {
+  return (
+    <SelectPrimitive.ScrollDownButton
+      data-slot="select-scroll-down-button"
+      className={cn(
+        "z-10 flex cursor-default items-center justify-center bg-popover py-1 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      <ChevronDownIcon
+      />
+    </SelectPrimitive.ScrollDownButton>
+  )
+}
+
+export {
+  Select,
+  SelectContent,
+  SelectGroup,
+  SelectItem,
+  SelectLabel,
+  SelectScrollDownButton,
+  SelectScrollUpButton,
+  SelectSeparator,
+  SelectTrigger,
+  SelectValue,
+}

frontend/src/components/ui/separator.tsx

@@ -0,0 +1,28 @@
+"use client"
+
+import * as React from "react"
+import { Separator as SeparatorPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function Separator({
+  className,
+  orientation = "horizontal",
+  decorative = true,
+  ...props
+}: React.ComponentProps<typeof SeparatorPrimitive.Root>) {
+  return (
+    <SeparatorPrimitive.Root
+      data-slot="separator"
+      decorative={decorative}
+      orientation={orientation}
+      className={cn(
+        "shrink-0 bg-border data-horizontal:h-px data-horizontal:w-full data-vertical:w-px data-vertical:self-stretch",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Separator }

frontend/src/components/ui/sheet.tsx

@@ -0,0 +1,147 @@
+"use client"
+
+import * as React from "react"
+import { Dialog as SheetPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { Button } from "@/components/ui/button"
+import { XIcon } from "lucide-react"
+
+function Sheet({ ...props }: React.ComponentProps<typeof SheetPrimitive.Root>) {
+  return <SheetPrimitive.Root data-slot="sheet" {...props} />
+}
+
+function SheetTrigger({
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Trigger>) {
+  return <SheetPrimitive.Trigger data-slot="sheet-trigger" {...props} />
+}
+
+function SheetClose({
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Close>) {
+  return <SheetPrimitive.Close data-slot="sheet-close" {...props} />
+}
+
+function SheetPortal({
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Portal>) {
+  return <SheetPrimitive.Portal data-slot="sheet-portal" {...props} />
+}
+
+function SheetOverlay({
+  className,
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Overlay>) {
+  return (
+    <SheetPrimitive.Overlay
+      data-slot="sheet-overlay"
+      className={cn(
+        "fixed inset-0 z-50 bg-black/10 duration-100 supports-backdrop-filter:backdrop-blur-xs data-open:animate-in data-open:fade-in-0 data-closed:animate-out data-closed:fade-out-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SheetContent({
+  className,
+  children,
+  side = "right",
+  showCloseButton = true,
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Content> & {
+  side?: "top" | "right" | "bottom" | "left"
+  showCloseButton?: boolean
+}) {
+  return (
+    <SheetPortal>
+      <SheetOverlay />
+      <SheetPrimitive.Content
+        data-slot="sheet-content"
+        data-side={side}
+        className={cn(
+          "fixed z-50 flex flex-col gap-4 bg-popover bg-clip-padding text-sm text-popover-foreground shadow-lg transition duration-200 ease-in-out data-[side=bottom]:inset-x-0 data-[side=bottom]:bottom-0 data-[side=bottom]:h-auto data-[side=bottom]:border-t data-[side=left]:inset-y-0 data-[side=left]:left-0 data-[side=left]:h-full data-[side=left]:w-3/4 data-[side=left]:border-r data-[side=right]:inset-y-0 data-[side=right]:right-0 data-[side=right]:h-full data-[side=right]:w-3/4 data-[side=right]:border-l data-[side=top]:inset-x-0 data-[side=top]:top-0 data-[side=top]:h-auto data-[side=top]:border-b data-[side=left]:sm:max-w-sm data-[side=right]:sm:max-w-sm data-open:animate-in data-open:fade-in-0 data-[side=bottom]:data-open:slide-in-from-bottom-10 data-[side=left]:data-open:slide-in-from-left-10 data-[side=right]:data-open:slide-in-from-right-10 data-[side=top]:data-open:slide-in-from-top-10 data-closed:animate-out data-closed:fade-out-0 data-[side=bottom]:data-closed:slide-out-to-bottom-10 data-[side=left]:data-closed:slide-out-to-left-10 data-[side=right]:data-closed:slide-out-to-right-10 data-[side=top]:data-closed:slide-out-to-top-10",
+          className
+        )}
+        {...props}
+      >
+        {children}
+        {showCloseButton && (
+          <SheetPrimitive.Close data-slot="sheet-close" asChild>
+            <Button
+              variant="ghost"
+              className="absolute top-3 right-3"
+              size="icon-sm"
+            >
+              <XIcon
+              />
+              <span className="sr-only">Close</span>
+            </Button>
+          </SheetPrimitive.Close>
+        )}
+      </SheetPrimitive.Content>
+    </SheetPortal>
+  )
+}
+
+function SheetHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sheet-header"
+      className={cn("flex flex-col gap-0.5 p-4", className)}
+      {...props}
+    />
+  )
+}
+
+function SheetFooter({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sheet-footer"
+      className={cn("mt-auto flex flex-col gap-2 p-4", className)}
+      {...props}
+    />
+  )
+}
+
+function SheetTitle({
+  className,
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Title>) {
+  return (
+    <SheetPrimitive.Title
+      data-slot="sheet-title"
+      className={cn(
+        "font-heading text-base font-medium text-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SheetDescription({
+  className,
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Description>) {
+  return (
+    <SheetPrimitive.Description
+      data-slot="sheet-description"
+      className={cn("text-sm text-muted-foreground", className)}
+      {...props}
+    />
+  )
+}
+
+export {
+  Sheet,
+  SheetTrigger,
+  SheetClose,
+  SheetContent,
+  SheetHeader,
+  SheetFooter,
+  SheetTitle,
+  SheetDescription,
+}

frontend/src/components/ui/sidebar.tsx

@@ -0,0 +1,702 @@
+"use client"
+
+import * as React from "react"
+import { cva, type VariantProps } from "class-variance-authority"
+import { Slot } from "radix-ui"
+
+import { useIsMobile } from "@/hooks/use-mobile"
+import { cn } from "@/lib/utils"
+import { Button } from "@/components/ui/button"
+import { Input } from "@/components/ui/input"
+import { Separator } from "@/components/ui/separator"
+import {
+  Sheet,
+  SheetContent,
+  SheetDescription,
+  SheetHeader,
+  SheetTitle,
+} from "@/components/ui/sheet"
+import { Skeleton } from "@/components/ui/skeleton"
+import {
+  Tooltip,
+  TooltipContent,
+  TooltipTrigger,
+} from "@/components/ui/tooltip"
+import { PanelLeftIcon } from "lucide-react"
+
+const SIDEBAR_COOKIE_NAME = "sidebar_state"
+const SIDEBAR_COOKIE_MAX_AGE = 60 * 60 * 24 * 7
+const SIDEBAR_WIDTH = "16rem"
+const SIDEBAR_WIDTH_MOBILE = "18rem"
+const SIDEBAR_WIDTH_ICON = "3rem"
+const SIDEBAR_KEYBOARD_SHORTCUT = "b"
+
+type SidebarContextProps = {
+  state: "expanded" | "collapsed"
+  open: boolean
+  setOpen: (open: boolean) => void
+  openMobile: boolean
+  setOpenMobile: (open: boolean) => void
+  isMobile: boolean
+  toggleSidebar: () => void
+}
+
+const SidebarContext = React.createContext<SidebarContextProps | null>(null)
+
+function useSidebar() {
+  const context = React.useContext(SidebarContext)
+  if (!context) {
+    throw new Error("useSidebar must be used within a SidebarProvider.")
+  }
+
+  return context
+}
+
+function SidebarProvider({
+  defaultOpen = true,
+  open: openProp,
+  onOpenChange: setOpenProp,
+  className,
+  style,
+  children,
+  ...props
+}: React.ComponentProps<"div"> & {
+  defaultOpen?: boolean
+  open?: boolean
+  onOpenChange?: (open: boolean) => void
+}) {
+  const isMobile = useIsMobile()
+  const [openMobile, setOpenMobile] = React.useState(false)
+
+  // This is the internal state of the sidebar.
+  // We use openProp and setOpenProp for control from outside the component.
+  const [_open, _setOpen] = React.useState(defaultOpen)
+  const open = openProp ?? _open
+  const setOpen = React.useCallback(
+    (value: boolean | ((value: boolean) => boolean)) => {
+      const openState = typeof value === "function" ? value(open) : value
+      if (setOpenProp) {
+        setOpenProp(openState)
+      } else {
+        _setOpen(openState)
+      }
+
+      // This sets the cookie to keep the sidebar state.
+      document.cookie = `${SIDEBAR_COOKIE_NAME}=${openState}; path=/; max-age=${SIDEBAR_COOKIE_MAX_AGE}`
+    },
+    [setOpenProp, open]
+  )
+
+  // Helper to toggle the sidebar.
+  const toggleSidebar = React.useCallback(() => {
+    return isMobile ? setOpenMobile((open) => !open) : setOpen((open) => !open)
+  }, [isMobile, setOpen, setOpenMobile])
+
+  // Adds a keyboard shortcut to toggle the sidebar.
+  React.useEffect(() => {
+    const handleKeyDown = (event: KeyboardEvent) => {
+      if (
+        event.key === SIDEBAR_KEYBOARD_SHORTCUT &&
+        (event.metaKey || event.ctrlKey)
+      ) {
+        event.preventDefault()
+        toggleSidebar()
+      }
+    }
+
+    window.addEventListener("keydown", handleKeyDown)
+    return () => window.removeEventListener("keydown", handleKeyDown)
+  }, [toggleSidebar])
+
+  // We add a state so that we can do data-state="expanded" or "collapsed".
+  // This makes it easier to style the sidebar with Tailwind classes.
+  const state = open ? "expanded" : "collapsed"
+
+  const contextValue = React.useMemo<SidebarContextProps>(
+    () => ({
+      state,
+      open,
+      setOpen,
+      isMobile,
+      openMobile,
+      setOpenMobile,
+      toggleSidebar,
+    }),
+    [state, open, setOpen, isMobile, openMobile, setOpenMobile, toggleSidebar]
+  )
+
+  return (
+    <SidebarContext.Provider value={contextValue}>
+      <div
+        data-slot="sidebar-wrapper"
+        style={
+          {
+            "--sidebar-width": SIDEBAR_WIDTH,
+            "--sidebar-width-icon": SIDEBAR_WIDTH_ICON,
+            ...style,
+          } as React.CSSProperties
+        }
+        className={cn(
+          "group/sidebar-wrapper flex min-h-svh w-full has-data-[variant=inset]:bg-sidebar",
+          className
+        )}
+        {...props}
+      >
+        {children}
+      </div>
+    </SidebarContext.Provider>
+  )
+}
+
+function Sidebar({
+  side = "left",
+  variant = "sidebar",
+  collapsible = "offcanvas",
+  className,
+  children,
+  dir,
+  ...props
+}: React.ComponentProps<"div"> & {
+  side?: "left" | "right"
+  variant?: "sidebar" | "floating" | "inset"
+  collapsible?: "offcanvas" | "icon" | "none"
+}) {
+  const { isMobile, state, openMobile, setOpenMobile } = useSidebar()
+
+  if (collapsible === "none") {
+    return (
+      <div
+        data-slot="sidebar"
+        className={cn(
+          "flex h-full w-(--sidebar-width) flex-col bg-sidebar text-sidebar-foreground",
+          className
+        )}
+        {...props}
+      >
+        {children}
+      </div>
+    )
+  }
+
+  if (isMobile) {
+    return (
+      <Sheet open={openMobile} onOpenChange={setOpenMobile} {...props}>
+        <SheetContent
+          dir={dir}
+          data-sidebar="sidebar"
+          data-slot="sidebar"
+          data-mobile="true"
+          className="w-(--sidebar-width) bg-sidebar p-0 text-sidebar-foreground [&>button]:hidden"
+          style={
+            {
+              "--sidebar-width": SIDEBAR_WIDTH_MOBILE,
+            } as React.CSSProperties
+          }
+          side={side}
+        >
+          <SheetHeader className="sr-only">
+            <SheetTitle>Sidebar</SheetTitle>
+            <SheetDescription>Displays the mobile sidebar.</SheetDescription>
+          </SheetHeader>
+          <div className="flex h-full w-full flex-col">{children}</div>
+        </SheetContent>
+      </Sheet>
+    )
+  }
+
+  return (
+    <div
+      className="group peer hidden text-sidebar-foreground md:block"
+      data-state={state}
+      data-collapsible={state === "collapsed" ? collapsible : ""}
+      data-variant={variant}
+      data-side={side}
+      data-slot="sidebar"
+    >
+      {/* This is what handles the sidebar gap on desktop */}
+      <div
+        data-slot="sidebar-gap"
+        className={cn(
+          "relative w-(--sidebar-width) bg-transparent transition-[width] duration-200 ease-linear",
+          "group-data-[collapsible=offcanvas]:w-0",
+          "group-data-[side=right]:rotate-180",
+          variant === "floating" || variant === "inset"
+            ? "group-data-[collapsible=icon]:w-[calc(var(--sidebar-width-icon)+(--spacing(4)))]"
+            : "group-data-[collapsible=icon]:w-(--sidebar-width-icon)"
+        )}
+      />
+      <div
+        data-slot="sidebar-container"
+        data-side={side}
+        className={cn(
+          "fixed inset-y-0 z-10 hidden h-svh w-(--sidebar-width) transition-[left,right,width] duration-200 ease-linear data-[side=left]:left-0 data-[side=left]:group-data-[collapsible=offcanvas]:left-[calc(var(--sidebar-width)*-1)] data-[side=right]:right-0 data-[side=right]:group-data-[collapsible=offcanvas]:right-[calc(var(--sidebar-width)*-1)] md:flex",
+          // Adjust the padding for floating and inset variants.
+          variant === "floating" || variant === "inset"
+            ? "p-2 group-data-[collapsible=icon]:w-[calc(var(--sidebar-width-icon)+(--spacing(4))+2px)]"
+            : "group-data-[collapsible=icon]:w-(--sidebar-width-icon) group-data-[side=left]:border-r group-data-[side=right]:border-l",
+          className
+        )}
+        {...props}
+      >
+        <div
+          data-sidebar="sidebar"
+          data-slot="sidebar-inner"
+          className="flex size-full flex-col bg-sidebar group-data-[variant=floating]:rounded-lg group-data-[variant=floating]:shadow-sm group-data-[variant=floating]:ring-1 group-data-[variant=floating]:ring-sidebar-border"
+        >
+          {children}
+        </div>
+      </div>
+    </div>
+  )
+}
+
+function SidebarTrigger({
+  className,
+  onClick,
+  ...props
+}: React.ComponentProps<typeof Button>) {
+  const { toggleSidebar } = useSidebar()
+
+  return (
+    <Button
+      data-sidebar="trigger"
+      data-slot="sidebar-trigger"
+      variant="ghost"
+      size="icon-sm"
+      className={cn(className)}
+      onClick={(event) => {
+        onClick?.(event)
+        toggleSidebar()
+      }}
+      {...props}
+    >
+      <PanelLeftIcon />
+      <span className="sr-only">Toggle Sidebar</span>
+    </Button>
+  )
+}
+
+function SidebarRail({ className, ...props }: React.ComponentProps<"button">) {
+  const { toggleSidebar } = useSidebar()
+
+  return (
+    <button
+      data-sidebar="rail"
+      data-slot="sidebar-rail"
+      aria-label="Toggle Sidebar"
+      tabIndex={-1}
+      onClick={toggleSidebar}
+      title="Toggle Sidebar"
+      className={cn(
+        "absolute inset-y-0 z-20 hidden w-4 transition-all ease-linear group-data-[side=left]:-right-4 group-data-[side=right]:left-0 after:absolute after:inset-y-0 after:start-1/2 after:w-[2px] hover:after:bg-sidebar-border sm:flex ltr:-translate-x-1/2 rtl:-translate-x-1/2",
+        "in-data-[side=left]:cursor-w-resize in-data-[side=right]:cursor-e-resize",
+        "[[data-side=left][data-state=collapsed]_&]:cursor-e-resize [[data-side=right][data-state=collapsed]_&]:cursor-w-resize",
+        "group-data-[collapsible=offcanvas]:translate-x-0 group-data-[collapsible=offcanvas]:after:left-full hover:group-data-[collapsible=offcanvas]:bg-sidebar",
+        "[[data-side=left][data-collapsible=offcanvas]_&]:-right-2",
+        "[[data-side=right][data-collapsible=offcanvas]_&]:-left-2",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SidebarInset({ className, ...props }: React.ComponentProps<"main">) {
+  return (
+    <main
+      data-slot="sidebar-inset"
+      className={cn(
+        "relative flex w-full flex-1 flex-col bg-background md:peer-data-[variant=inset]:m-2 md:peer-data-[variant=inset]:ml-0 md:peer-data-[variant=inset]:rounded-xl md:peer-data-[variant=inset]:shadow-sm md:peer-data-[variant=inset]:peer-data-[state=collapsed]:ml-2",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SidebarInput({
+  className,
+  ...props
+}: React.ComponentProps<typeof Input>) {
+  return (
+    <Input
+      data-slot="sidebar-input"
+      data-sidebar="input"
+      className={cn("h-8 w-full bg-background shadow-none", className)}
+      {...props}
+    />
+  )
+}
+
+function SidebarHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-header"
+      data-sidebar="header"
+      className={cn("flex flex-col gap-2 p-2", className)}
+      {...props}
+    />
+  )
+}
+
+function SidebarFooter({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-footer"
+      data-sidebar="footer"
+      className={cn("flex flex-col gap-2 p-2", className)}
+      {...props}
+    />
+  )
+}
+
+function SidebarSeparator({
+  className,
+  ...props
+}: React.ComponentProps<typeof Separator>) {
+  return (
+    <Separator
+      data-slot="sidebar-separator"
+      data-sidebar="separator"
+      className={cn("mx-2 w-auto bg-sidebar-border", className)}
+      {...props}
+    />
+  )
+}
+
+function SidebarContent({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-content"
+      data-sidebar="content"
+      className={cn(
+        "no-scrollbar flex min-h-0 flex-1 flex-col gap-0 overflow-auto group-data-[collapsible=icon]:overflow-hidden",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SidebarGroup({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-group"
+      data-sidebar="group"
+      className={cn("relative flex w-full min-w-0 flex-col p-2", className)}
+      {...props}
+    />
+  )
+}
+
+function SidebarGroupLabel({
+  className,
+  asChild = false,
+  ...props
+}: React.ComponentProps<"div"> & { asChild?: boolean }) {
+  const Comp = asChild ? Slot.Root : "div"
+
+  return (
+    <Comp
+      data-slot="sidebar-group-label"
+      data-sidebar="group-label"
+      className={cn(
+        "flex h-8 shrink-0 items-center rounded-md px-2 text-xs font-medium text-sidebar-foreground/70 ring-sidebar-ring outline-hidden transition-[margin,opacity] duration-200 ease-linear group-data-[collapsible=icon]:-mt-8 group-data-[collapsible=icon]:opacity-0 focus-visible:ring-2 [&>svg]:size-4 [&>svg]:shrink-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SidebarGroupAction({
+  className,
+  asChild = false,
+  ...props
+}: React.ComponentProps<"button"> & { asChild?: boolean }) {
+  const Comp = asChild ? Slot.Root : "button"
+
+  return (
+    <Comp
+      data-slot="sidebar-group-action"
+      data-sidebar="group-action"
+      className={cn(
+        "absolute top-3.5 right-3 flex aspect-square w-5 items-center justify-center rounded-md p-0 text-sidebar-foreground ring-sidebar-ring outline-hidden transition-transform group-data-[collapsible=icon]:hidden after:absolute after:-inset-2 hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 md:after:hidden [&>svg]:size-4 [&>svg]:shrink-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SidebarGroupContent({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-group-content"
+      data-sidebar="group-content"
+      className={cn("w-full text-sm", className)}
+      {...props}
+    />
+  )
+}
+
+function SidebarMenu({ className, ...props }: React.ComponentProps<"ul">) {
+  return (
+    <ul
+      data-slot="sidebar-menu"
+      data-sidebar="menu"
+      className={cn("flex w-full min-w-0 flex-col gap-0", className)}
+      {...props}
+    />
+  )
+}
+
+function SidebarMenuItem({ className, ...props }: React.ComponentProps<"li">) {
+  return (
+    <li
+      data-slot="sidebar-menu-item"
+      data-sidebar="menu-item"
+      className={cn("group/menu-item relative", className)}
+      {...props}
+    />
+  )
+}
+
+const sidebarMenuButtonVariants = cva(
+  "peer/menu-button group/menu-button flex w-full items-center gap-2 overflow-hidden rounded-md p-2 text-left text-sm ring-sidebar-ring outline-hidden transition-[width,height,padding] group-has-data-[sidebar=menu-action]/menu-item:pr-8 group-data-[collapsible=icon]:size-8! group-data-[collapsible=icon]:p-2! hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 active:bg-sidebar-accent active:text-sidebar-accent-foreground disabled:pointer-events-none disabled:opacity-50 aria-disabled:pointer-events-none aria-disabled:opacity-50 data-open:hover:bg-sidebar-accent data-open:hover:text-sidebar-accent-foreground data-active:bg-sidebar-accent data-active:font-medium data-active:text-sidebar-accent-foreground [&_svg]:size-4 [&_svg]:shrink-0 [&>span:last-child]:truncate",
+  {
+    variants: {
+      variant: {
+        default: "hover:bg-sidebar-accent hover:text-sidebar-accent-foreground",
+        outline:
+          "bg-background shadow-[0_0_0_1px_var(--sidebar-border)] hover:bg-sidebar-accent hover:text-sidebar-accent-foreground hover:shadow-[0_0_0_1px_var(--sidebar-accent)]",
+      },
+      size: {
+        default: "h-8 text-sm",
+        sm: "h-7 text-xs",
+        lg: "h-12 text-sm group-data-[collapsible=icon]:p-0!",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+      size: "default",
+    },
+  }
+)
+
+function SidebarMenuButton({
+  asChild = false,
+  isActive = false,
+  variant = "default",
+  size = "default",
+  tooltip,
+  className,
+  ...props
+}: React.ComponentProps<"button"> & {
+  asChild?: boolean
+  isActive?: boolean
+  tooltip?: string | React.ComponentProps<typeof TooltipContent>
+} & VariantProps<typeof sidebarMenuButtonVariants>) {
+  const Comp = asChild ? Slot.Root : "button"
+  const { isMobile, state } = useSidebar()
+
+  const button = (
+    <Comp
+      data-slot="sidebar-menu-button"
+      data-sidebar="menu-button"
+      data-size={size}
+      data-active={isActive}
+      className={cn(sidebarMenuButtonVariants({ variant, size }), className)}
+      {...props}
+    />
+  )
+
+  if (!tooltip) {
+    return button
+  }
+
+  if (typeof tooltip === "string") {
+    tooltip = {
+      children: tooltip,
+    }
+  }
+
+  return (
+    <Tooltip>
+      <TooltipTrigger asChild>{button}</TooltipTrigger>
+      <TooltipContent
+        side="right"
+        align="center"
+        hidden={state !== "collapsed" || isMobile}
+        {...tooltip}
+      />
+    </Tooltip>
+  )
+}
+
+function SidebarMenuAction({
+  className,
+  asChild = false,
+  showOnHover = false,
+  ...props
+}: React.ComponentProps<"button"> & {
+  asChild?: boolean
+  showOnHover?: boolean
+}) {
+  const Comp = asChild ? Slot.Root : "button"
+
+  return (
+    <Comp
+      data-slot="sidebar-menu-action"
+      data-sidebar="menu-action"
+      className={cn(
+        "absolute top-1.5 right-1 flex aspect-square w-5 items-center justify-center rounded-md p-0 text-sidebar-foreground ring-sidebar-ring outline-hidden transition-transform group-data-[collapsible=icon]:hidden peer-hover/menu-button:text-sidebar-accent-foreground peer-data-[size=default]/menu-button:top-1.5 peer-data-[size=lg]/menu-button:top-2.5 peer-data-[size=sm]/menu-button:top-1 after:absolute after:-inset-2 hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 md:after:hidden [&>svg]:size-4 [&>svg]:shrink-0",
+        showOnHover &&
+          "group-focus-within/menu-item:opacity-100 group-hover/menu-item:opacity-100 peer-data-active/menu-button:text-sidebar-accent-foreground aria-expanded:opacity-100 md:opacity-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SidebarMenuBadge({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-menu-badge"
+      data-sidebar="menu-badge"
+      className={cn(
+        "pointer-events-none absolute right-1 flex h-5 min-w-5 items-center justify-center rounded-md px-1 text-xs font-medium text-sidebar-foreground tabular-nums select-none group-data-[collapsible=icon]:hidden peer-hover/menu-button:text-sidebar-accent-foreground peer-data-[size=default]/menu-button:top-1.5 peer-data-[size=lg]/menu-button:top-2.5 peer-data-[size=sm]/menu-button:top-1 peer-data-active/menu-button:text-sidebar-accent-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SidebarMenuSkeleton({
+  className,
+  showIcon = false,
+  ...props
+}: React.ComponentProps<"div"> & {
+  showIcon?: boolean
+}) {
+  // Random width between 50 to 90%.
+  const [width] = React.useState(() => {
+    return `${Math.floor(Math.random() * 40) + 50}%`
+  })
+
+  return (
+    <div
+      data-slot="sidebar-menu-skeleton"
+      data-sidebar="menu-skeleton"
+      className={cn("flex h-8 items-center gap-2 rounded-md px-2", className)}
+      {...props}
+    >
+      {showIcon && (
+        <Skeleton
+          className="size-4 rounded-md"
+          data-sidebar="menu-skeleton-icon"
+        />
+      )}
+      <Skeleton
+        className="h-4 max-w-(--skeleton-width) flex-1"
+        data-sidebar="menu-skeleton-text"
+        style={
+          {
+            "--skeleton-width": width,
+          } as React.CSSProperties
+        }
+      />
+    </div>
+  )
+}
+
+function SidebarMenuSub({ className, ...props }: React.ComponentProps<"ul">) {
+  return (
+    <ul
+      data-slot="sidebar-menu-sub"
+      data-sidebar="menu-sub"
+      className={cn(
+        "mx-3.5 flex min-w-0 translate-x-px flex-col gap-1 border-l border-sidebar-border px-2.5 py-0.5 group-data-[collapsible=icon]:hidden",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SidebarMenuSubItem({
+  className,
+  ...props
+}: React.ComponentProps<"li">) {
+  return (
+    <li
+      data-slot="sidebar-menu-sub-item"
+      data-sidebar="menu-sub-item"
+      className={cn("group/menu-sub-item relative", className)}
+      {...props}
+    />
+  )
+}
+
+function SidebarMenuSubButton({
+  asChild = false,
+  size = "md",
+  isActive = false,
+  className,
+  ...props
+}: React.ComponentProps<"a"> & {
+  asChild?: boolean
+  size?: "sm" | "md"
+  isActive?: boolean
+}) {
+  const Comp = asChild ? Slot.Root : "a"
+
+  return (
+    <Comp
+      data-slot="sidebar-menu-sub-button"
+      data-sidebar="menu-sub-button"
+      data-size={size}
+      data-active={isActive}
+      className={cn(
+        "flex h-7 min-w-0 -translate-x-px items-center gap-2 overflow-hidden rounded-md px-2 text-sidebar-foreground ring-sidebar-ring outline-hidden group-data-[collapsible=icon]:hidden hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 active:bg-sidebar-accent active:text-sidebar-accent-foreground disabled:pointer-events-none disabled:opacity-50 aria-disabled:pointer-events-none aria-disabled:opacity-50 data-[size=md]:text-sm data-[size=sm]:text-xs data-active:bg-sidebar-accent data-active:text-sidebar-accent-foreground [&>span:last-child]:truncate [&>svg]:size-4 [&>svg]:shrink-0 [&>svg]:text-sidebar-accent-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  Sidebar,
+  SidebarContent,
+  SidebarFooter,
+  SidebarGroup,
+  SidebarGroupAction,
+  SidebarGroupContent,
+  SidebarGroupLabel,
+  SidebarHeader,
+  SidebarInput,
+  SidebarInset,
+  SidebarMenu,
+  SidebarMenuAction,
+  SidebarMenuBadge,
+  SidebarMenuButton,
+  SidebarMenuItem,
+  SidebarMenuSkeleton,
+  SidebarMenuSub,
+  SidebarMenuSubButton,
+  SidebarMenuSubItem,
+  SidebarProvider,
+  SidebarRail,
+  SidebarSeparator,
+  SidebarTrigger,
+  useSidebar,
+}

frontend/src/components/ui/skeleton.tsx

@@ -0,0 +1,13 @@
+import { cn } from "@/lib/utils"
+
+function Skeleton({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="skeleton"
+      className={cn("animate-pulse rounded-md bg-muted", className)}
+      {...props}
+    />
+  )
+}
+
+export { Skeleton }

frontend/src/components/ui/slider.tsx

@@ -0,0 +1,59 @@
+"use client"
+
+import * as React from "react"
+import { Slider as SliderPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function Slider({
+  className,
+  defaultValue,
+  value,
+  min = 0,
+  max = 100,
+  ...props
+}: React.ComponentProps<typeof SliderPrimitive.Root>) {
+  const _values = React.useMemo(
+    () =>
+      Array.isArray(value)
+        ? value
+        : Array.isArray(defaultValue)
+          ? defaultValue
+          : [min, max],
+    [value, defaultValue, min, max]
+  )
+
+  return (
+    <SliderPrimitive.Root
+      data-slot="slider"
+      defaultValue={defaultValue}
+      value={value}
+      min={min}
+      max={max}
+      className={cn(
+        "relative flex w-full touch-none items-center select-none data-disabled:opacity-50 data-vertical:h-full data-vertical:min-h-40 data-vertical:w-auto data-vertical:flex-col",
+        className
+      )}
+      {...props}
+    >
+      <SliderPrimitive.Track
+        data-slot="slider-track"
+        className="relative grow overflow-hidden rounded-full bg-muted data-horizontal:h-1 data-horizontal:w-full data-vertical:h-full data-vertical:w-1"
+      >
+        <SliderPrimitive.Range
+          data-slot="slider-range"
+          className="absolute bg-primary select-none data-horizontal:h-full data-vertical:w-full"
+        />
+      </SliderPrimitive.Track>
+      {Array.from({ length: _values.length }, (_, index) => (
+        <SliderPrimitive.Thumb
+          data-slot="slider-thumb"
+          key={index}
+          className="relative block size-3 shrink-0 rounded-full border border-ring bg-white ring-ring/50 transition-[color,box-shadow] select-none after:absolute after:-inset-2 hover:ring-3 focus-visible:ring-3 focus-visible:outline-hidden active:ring-3 disabled:pointer-events-none disabled:opacity-50"
+        />
+      ))}
+    </SliderPrimitive.Root>
+  )
+}
+
+export { Slider }

frontend/src/components/ui/sonner.tsx

@@ -0,0 +1,49 @@
+"use client"
+
+import { useTheme } from "next-themes"
+import { Toaster as Sonner, type ToasterProps } from "sonner"
+import { CircleCheckIcon, InfoIcon, TriangleAlertIcon, OctagonXIcon, Loader2Icon } from "lucide-react"
+
+const Toaster = ({ ...props }: ToasterProps) => {
+  const { theme = "system" } = useTheme()
+
+  return (
+    <Sonner
+      theme={theme as ToasterProps["theme"]}
+      className="toaster group"
+      icons={{
+        success: (
+          <CircleCheckIcon className="size-4" />
+        ),
+        info: (
+          <InfoIcon className="size-4" />
+        ),
+        warning: (
+          <TriangleAlertIcon className="size-4" />
+        ),
+        error: (
+          <OctagonXIcon className="size-4" />
+        ),
+        loading: (
+          <Loader2Icon className="size-4 animate-spin" />
+        ),
+      }}
+      style={
+        {
+          "--normal-bg": "var(--popover)",
+          "--normal-text": "var(--popover-foreground)",
+          "--normal-border": "var(--border)",
+          "--border-radius": "var(--radius)",
+        } as React.CSSProperties
+      }
+      toastOptions={{
+        classNames: {
+          toast: "cn-toast",
+        },
+      }}
+      {...props}
+    />
+  )
+}
+
+export { Toaster }

frontend/src/components/ui/spinner.tsx

@@ -0,0 +1,10 @@
+import { cn } from "@/lib/utils"
+import { Loader2Icon } from "lucide-react"
+
+function Spinner({ className, ...props }: React.ComponentProps<"svg">) {
+  return (
+    <Loader2Icon data-slot="spinner" role="status" aria-label="Loading" className={cn("size-4 animate-spin", className)} {...props} />
+  )
+}
+
+export { Spinner }

frontend/src/components/ui/switch.tsx

@@ -0,0 +1,33 @@
+"use client"
+
+import * as React from "react"
+import { Switch as SwitchPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function Switch({
+  className,
+  size = "default",
+  ...props
+}: React.ComponentProps<typeof SwitchPrimitive.Root> & {
+  size?: "sm" | "default"
+}) {
+  return (
+    <SwitchPrimitive.Root
+      data-slot="switch"
+      data-size={size}
+      className={cn(
+        "peer group/switch relative inline-flex shrink-0 items-center rounded-full border border-transparent transition-all outline-none after:absolute after:-inset-x-3 after:-inset-y-2 focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20 data-[size=default]:h-[18.4px] data-[size=default]:w-[32px] data-[size=sm]:h-[14px] data-[size=sm]:w-[24px] dark:aria-invalid:border-destructive/50 dark:aria-invalid:ring-destructive/40 data-checked:bg-primary data-unchecked:bg-input dark:data-unchecked:bg-input/80 data-disabled:cursor-not-allowed data-disabled:opacity-50",
+        className
+      )}
+      {...props}
+    >
+      <SwitchPrimitive.Thumb
+        data-slot="switch-thumb"
+        className="pointer-events-none block rounded-full bg-background ring-0 transition-transform group-data-[size=default]/switch:size-4 group-data-[size=sm]/switch:size-3 group-data-[size=default]/switch:data-checked:translate-x-[calc(100%-2px)] group-data-[size=sm]/switch:data-checked:translate-x-[calc(100%-2px)] dark:data-checked:bg-primary-foreground group-data-[size=default]/switch:data-unchecked:translate-x-0 group-data-[size=sm]/switch:data-unchecked:translate-x-0 dark:data-unchecked:bg-foreground"
+      />
+    </SwitchPrimitive.Root>
+  )
+}
+
+export { Switch }

frontend/src/components/ui/table.tsx

@@ -0,0 +1,116 @@
+"use client"
+
+import * as React from "react"
+
+import { cn } from "@/lib/utils"
+
+function Table({ className, ...props }: React.ComponentProps<"table">) {
+  return (
+    <div
+      data-slot="table-container"
+      className="relative w-full overflow-x-auto"
+    >
+      <table
+        data-slot="table"
+        className={cn("w-full caption-bottom text-sm", className)}
+        {...props}
+      />
+    </div>
+  )
+}
+
+function TableHeader({ className, ...props }: React.ComponentProps<"thead">) {
+  return (
+    <thead
+      data-slot="table-header"
+      className={cn("[&_tr]:border-b", className)}
+      {...props}
+    />
+  )
+}
+
+function TableBody({ className, ...props }: React.ComponentProps<"tbody">) {
+  return (
+    <tbody
+      data-slot="table-body"
+      className={cn("[&_tr:last-child]:border-0", className)}
+      {...props}
+    />
+  )
+}
+
+function TableFooter({ className, ...props }: React.ComponentProps<"tfoot">) {
+  return (
+    <tfoot
+      data-slot="table-footer"
+      className={cn(
+        "border-t bg-muted/50 font-medium [&>tr]:last:border-b-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function TableRow({ className, ...props }: React.ComponentProps<"tr">) {
+  return (
+    <tr
+      data-slot="table-row"
+      className={cn(
+        "border-b transition-colors hover:bg-muted/50 has-aria-expanded:bg-muted/50 data-[state=selected]:bg-muted",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function TableHead({ className, ...props }: React.ComponentProps<"th">) {
+  return (
+    <th
+      data-slot="table-head"
+      className={cn(
+        "h-10 px-2 text-left align-middle font-medium whitespace-nowrap text-foreground [&:has([role=checkbox])]:pr-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function TableCell({ className, ...props }: React.ComponentProps<"td">) {
+  return (
+    <td
+      data-slot="table-cell"
+      className={cn(
+        "p-2 align-middle whitespace-nowrap [&:has([role=checkbox])]:pr-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function TableCaption({
+  className,
+  ...props
+}: React.ComponentProps<"caption">) {
+  return (
+    <caption
+      data-slot="table-caption"
+      className={cn("mt-4 text-sm text-muted-foreground", className)}
+      {...props}
+    />
+  )
+}
+
+export {
+  Table,
+  TableHeader,
+  TableBody,
+  TableFooter,
+  TableHead,
+  TableRow,
+  TableCell,
+  TableCaption,
+}

frontend/src/components/ui/tabs.tsx

@@ -0,0 +1,90 @@
+"use client"
+
+import * as React from "react"
+import { cva, type VariantProps } from "class-variance-authority"
+import { Tabs as TabsPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function Tabs({
+  className,
+  orientation = "horizontal",
+  ...props
+}: React.ComponentProps<typeof TabsPrimitive.Root>) {
+  return (
+    <TabsPrimitive.Root
+      data-slot="tabs"
+      data-orientation={orientation}
+      className={cn(
+        "group/tabs flex gap-2 data-horizontal:flex-col",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+const tabsListVariants = cva(
+  "group/tabs-list inline-flex w-fit items-center justify-center rounded-lg p-[3px] text-muted-foreground group-data-horizontal/tabs:h-8 group-data-vertical/tabs:h-fit group-data-vertical/tabs:flex-col data-[variant=line]:rounded-none",
+  {
+    variants: {
+      variant: {
+        default: "bg-muted",
+        line: "gap-1 bg-transparent",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+    },
+  }
+)
+
+function TabsList({
+  className,
+  variant = "default",
+  ...props
+}: React.ComponentProps<typeof TabsPrimitive.List> &
+  VariantProps<typeof tabsListVariants>) {
+  return (
+    <TabsPrimitive.List
+      data-slot="tabs-list"
+      data-variant={variant}
+      className={cn(tabsListVariants({ variant }), className)}
+      {...props}
+    />
+  )
+}
+
+function TabsTrigger({
+  className,
+  ...props
+}: React.ComponentProps<typeof TabsPrimitive.Trigger>) {
+  return (
+    <TabsPrimitive.Trigger
+      data-slot="tabs-trigger"
+      className={cn(
+        "relative inline-flex h-[calc(100%-1px)] flex-1 items-center justify-center gap-1.5 rounded-md border border-transparent px-1.5 py-0.5 text-sm font-medium whitespace-nowrap text-foreground/60 transition-all group-data-vertical/tabs:w-full group-data-vertical/tabs:justify-start hover:text-foreground focus-visible:border-ring focus-visible:ring-[3px] focus-visible:ring-ring/50 focus-visible:outline-1 focus-visible:outline-ring disabled:pointer-events-none disabled:opacity-50 has-data-[icon=inline-end]:pr-1 has-data-[icon=inline-start]:pl-1 dark:text-muted-foreground dark:hover:text-foreground group-data-[variant=default]/tabs-list:data-active:shadow-sm group-data-[variant=line]/tabs-list:data-active:shadow-none [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        "group-data-[variant=line]/tabs-list:bg-transparent group-data-[variant=line]/tabs-list:data-active:bg-transparent dark:group-data-[variant=line]/tabs-list:data-active:border-transparent dark:group-data-[variant=line]/tabs-list:data-active:bg-transparent",
+        "data-active:bg-background data-active:text-foreground dark:data-active:border-input dark:data-active:bg-input/30 dark:data-active:text-foreground",
+        "after:absolute after:bg-foreground after:opacity-0 after:transition-opacity group-data-horizontal/tabs:after:inset-x-0 group-data-horizontal/tabs:after:bottom-[-5px] group-data-horizontal/tabs:after:h-0.5 group-data-vertical/tabs:after:inset-y-0 group-data-vertical/tabs:after:-right-1 group-data-vertical/tabs:after:w-0.5 group-data-[variant=line]/tabs-list:data-active:after:opacity-100",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function TabsContent({
+  className,
+  ...props
+}: React.ComponentProps<typeof TabsPrimitive.Content>) {
+  return (
+    <TabsPrimitive.Content
+      data-slot="tabs-content"
+      className={cn("flex-1 text-sm outline-none", className)}
+      {...props}
+    />
+  )
+}
+
+export { Tabs, TabsList, TabsTrigger, TabsContent, tabsListVariants }

frontend/src/components/ui/textarea.tsx

@@ -0,0 +1,18 @@
+import * as React from "react"
+
+import { cn } from "@/lib/utils"
+
+function Textarea({ className, ...props }: React.ComponentProps<"textarea">) {
+  return (
+    <textarea
+      data-slot="textarea"
+      className={cn(
+        "flex field-sizing-content min-h-16 w-full rounded-lg border border-input bg-transparent px-2.5 py-2 text-base transition-colors outline-none placeholder:text-muted-foreground focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 disabled:cursor-not-allowed disabled:bg-input/50 disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20 md:text-sm dark:bg-input/30 dark:disabled:bg-input/80 dark:aria-invalid:border-destructive/50 dark:aria-invalid:ring-destructive/40",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Textarea }

frontend/src/components/ui/toggle-group.tsx

@@ -0,0 +1,89 @@
+"use client"
+
+import * as React from "react"
+import { type VariantProps } from "class-variance-authority"
+import { ToggleGroup as ToggleGroupPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { toggleVariants } from "@/components/ui/toggle"
+
+const ToggleGroupContext = React.createContext<
+  VariantProps<typeof toggleVariants> & {
+    spacing?: number
+    orientation?: "horizontal" | "vertical"
+  }
+>({
+  size: "default",
+  variant: "default",
+  spacing: 2,
+  orientation: "horizontal",
+})
+
+function ToggleGroup({
+  className,
+  variant,
+  size,
+  spacing = 2,
+  orientation = "horizontal",
+  children,
+  ...props
+}: React.ComponentProps<typeof ToggleGroupPrimitive.Root> &
+  VariantProps<typeof toggleVariants> & {
+    spacing?: number
+    orientation?: "horizontal" | "vertical"
+  }) {
+  return (
+    <ToggleGroupPrimitive.Root
+      data-slot="toggle-group"
+      data-variant={variant}
+      data-size={size}
+      data-spacing={spacing}
+      data-orientation={orientation}
+      style={{ "--gap": spacing } as React.CSSProperties}
+      className={cn(
+        "group/toggle-group flex w-fit flex-row items-center gap-[--spacing(var(--gap))] rounded-lg data-[size=sm]:rounded-[min(var(--radius-md),10px)] data-vertical:flex-col data-vertical:items-stretch",
+        className
+      )}
+      {...props}
+    >
+      <ToggleGroupContext.Provider
+        value={{ variant, size, spacing, orientation }}
+      >
+        {children}
+      </ToggleGroupContext.Provider>
+    </ToggleGroupPrimitive.Root>
+  )
+}
+
+function ToggleGroupItem({
+  className,
+  children,
+  variant = "default",
+  size = "default",
+  ...props
+}: React.ComponentProps<typeof ToggleGroupPrimitive.Item> &
+  VariantProps<typeof toggleVariants>) {
+  const context = React.useContext(ToggleGroupContext)
+
+  return (
+    <ToggleGroupPrimitive.Item
+      data-slot="toggle-group-item"
+      data-variant={context.variant || variant}
+      data-size={context.size || size}
+      data-spacing={context.spacing}
+      className={cn(
+        "shrink-0 group-data-[spacing=0]/toggle-group:rounded-none group-data-[spacing=0]/toggle-group:px-2 focus:z-10 focus-visible:z-10 group-data-[spacing=0]/toggle-group:has-data-[icon=inline-end]:pr-1.5 group-data-[spacing=0]/toggle-group:has-data-[icon=inline-start]:pl-1.5 group-data-horizontal/toggle-group:data-[spacing=0]:first:rounded-l-lg group-data-vertical/toggle-group:data-[spacing=0]:first:rounded-t-lg group-data-horizontal/toggle-group:data-[spacing=0]:last:rounded-r-lg group-data-vertical/toggle-group:data-[spacing=0]:last:rounded-b-lg group-data-horizontal/toggle-group:data-[spacing=0]:data-[variant=outline]:border-l-0 group-data-vertical/toggle-group:data-[spacing=0]:data-[variant=outline]:border-t-0 group-data-horizontal/toggle-group:data-[spacing=0]:data-[variant=outline]:first:border-l group-data-vertical/toggle-group:data-[spacing=0]:data-[variant=outline]:first:border-t",
+        toggleVariants({
+          variant: context.variant || variant,
+          size: context.size || size,
+        }),
+        className
+      )}
+      {...props}
+    >
+      {children}
+    </ToggleGroupPrimitive.Item>
+  )
+}
+
+export { ToggleGroup, ToggleGroupItem }

frontend/src/components/ui/toggle.tsx

@@ -0,0 +1,47 @@
+"use client"
+
+import * as React from "react"
+import { cva, type VariantProps } from "class-variance-authority"
+import { Toggle as TogglePrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+const toggleVariants = cva(
+  "group/toggle inline-flex items-center justify-center gap-1 rounded-lg text-sm font-medium whitespace-nowrap transition-all outline-none hover:bg-muted hover:text-foreground focus-visible:border-ring focus-visible:ring-[3px] focus-visible:ring-ring/50 disabled:pointer-events-none disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-destructive/20 aria-pressed:bg-muted data-[state=on]:bg-muted dark:aria-invalid:ring-destructive/40 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+  {
+    variants: {
+      variant: {
+        default: "bg-transparent",
+        outline: "border border-input bg-transparent hover:bg-muted",
+      },
+      size: {
+        default:
+          "h-8 min-w-8 px-2.5 has-data-[icon=inline-end]:pr-2 has-data-[icon=inline-start]:pl-2",
+        sm: "h-7 min-w-7 rounded-[min(var(--radius-md),12px)] px-2.5 text-[0.8rem] has-data-[icon=inline-end]:pr-1.5 has-data-[icon=inline-start]:pl-1.5 [&_svg:not([class*='size-'])]:size-3.5",
+        lg: "h-9 min-w-9 px-2.5 has-data-[icon=inline-end]:pr-2 has-data-[icon=inline-start]:pl-2",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+      size: "default",
+    },
+  }
+)
+
+function Toggle({
+  className,
+  variant = "default",
+  size = "default",
+  ...props
+}: React.ComponentProps<typeof TogglePrimitive.Root> &
+  VariantProps<typeof toggleVariants>) {
+  return (
+    <TogglePrimitive.Root
+      data-slot="toggle"
+      className={cn(toggleVariants({ variant, size, className }))}
+      {...props}
+    />
+  )
+}
+
+export { Toggle, toggleVariants }

frontend/src/components/ui/tooltip.tsx

@@ -0,0 +1,57 @@
+"use client"
+
+import * as React from "react"
+import { Tooltip as TooltipPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function TooltipProvider({
+  delayDuration = 0,
+  ...props
+}: React.ComponentProps<typeof TooltipPrimitive.Provider>) {
+  return (
+    <TooltipPrimitive.Provider
+      data-slot="tooltip-provider"
+      delayDuration={delayDuration}
+      {...props}
+    />
+  )
+}
+
+function Tooltip({
+  ...props
+}: React.ComponentProps<typeof TooltipPrimitive.Root>) {
+  return <TooltipPrimitive.Root data-slot="tooltip" {...props} />
+}
+
+function TooltipTrigger({
+  ...props
+}: React.ComponentProps<typeof TooltipPrimitive.Trigger>) {
+  return <TooltipPrimitive.Trigger data-slot="tooltip-trigger" {...props} />
+}
+
+function TooltipContent({
+  className,
+  sideOffset = 0,
+  children,
+  ...props
+}: React.ComponentProps<typeof TooltipPrimitive.Content>) {
+  return (
+    <TooltipPrimitive.Portal>
+      <TooltipPrimitive.Content
+        data-slot="tooltip-content"
+        sideOffset={sideOffset}
+        className={cn(
+          "z-50 inline-flex w-fit max-w-xs origin-(--radix-tooltip-content-transform-origin) items-center gap-1.5 rounded-md bg-foreground px-3 py-1.5 text-xs text-background has-data-[slot=kbd]:pr-1.5 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 **:data-[slot=kbd]:relative **:data-[slot=kbd]:isolate **:data-[slot=kbd]:z-50 **:data-[slot=kbd]:rounded-sm data-[state=delayed-open]:animate-in data-[state=delayed-open]:fade-in-0 data-[state=delayed-open]:zoom-in-95 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95",
+          className
+        )}
+        {...props}
+      >
+        {children}
+        <TooltipPrimitive.Arrow className="z-50 size-2.5 translate-y-[calc(-50%_-_2px)] rotate-45 rounded-[2px] bg-foreground fill-foreground" />
+      </TooltipPrimitive.Content>
+    </TooltipPrimitive.Portal>
+  )
+}
+
+export { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger }

frontend/src/config/app-config.ts

@@ -0,0 +1,7 @@
+export const APP_CONFIG = {
+  name: "TicketTracker",
+  meta: {
+    title: "TicketTracker",
+    description: "Zeiterfassung und Auswertung fuer Tickets",
+  },
+} as const;

frontend/src/format.ts

@@ -0,0 +1,59 @@
+export function formatTimer(totalSeconds: number) {
+  const hours = Math.floor(totalSeconds / 3600);
+  const minutes = Math.floor((totalSeconds % 3600) / 60);
+  const seconds = totalSeconds % 60;
+
+  return [hours, minutes, seconds].map((part) => String(part).padStart(2, "0")).join(":");
+}
+
+export function formatMinutes(minutes: number) {
+  const hours = Math.floor(minutes / 60);
+  const rest = minutes % 60;
+
+  if (hours === 0) {
+    return `${rest} min`;
+  }
+
+  if (rest === 0) {
+    return `${hours} h`;
+  }
+
+  return `${hours} h ${rest} min`;
+}
+
+export function formatDateTime(value: string) {
+  return new Intl.DateTimeFormat("de-DE", {
+    dateStyle: "medium",
+    timeStyle: "short"
+  }).format(new Date(value));
+}
+
+export function formatDate(value: string) {
+  return new Intl.DateTimeFormat("de-DE", {
+    weekday: "long",
+    day: "2-digit",
+    month: "2-digit",
+    year: "numeric"
+  }).format(new Date(value));
+}
+
+export function formatTime(value: string) {
+  return new Intl.DateTimeFormat("de-DE", {
+    hour: "2-digit",
+    minute: "2-digit"
+  }).format(new Date(value));
+}
+
+export function formatTimeRange(start: string, end: string) {
+  return `${formatTime(start)} - ${formatTime(end)}`;
+}
+
+export function currentMonth() {
+  const now = new Date();
+  return `${now.getFullYear()}-${String(now.getMonth() + 1).padStart(2, "0")}`;
+}
+
+export function currentDay() {
+  const now = new Date();
+  return `${now.getFullYear()}-${String(now.getMonth() + 1).padStart(2, "0")}-${String(now.getDate()).padStart(2, "0")}`;
+}

frontend/src/hooks/use-lg.ts

@@ -0,0 +1,19 @@
+import * as React from "react";
+
+const LG_BREAKPOINT = 1024;
+
+export function useIsLg() {
+  const [isLg, setIsLg] = React.useState<boolean | undefined>(undefined);
+
+  React.useEffect(() => {
+    const mql = window.matchMedia(`(min-width: ${LG_BREAKPOINT}px)`);
+    const onChange = () => {
+      setIsLg(window.innerWidth >= LG_BREAKPOINT);
+    };
+    mql.addEventListener("change", onChange);
+    setIsLg(window.innerWidth >= LG_BREAKPOINT);
+    return () => mql.removeEventListener("change", onChange);
+  }, []);
+
+  return !!isLg;
+}

frontend/src/hooks/use-mobile.ts

@@ -0,0 +1,19 @@
+import * as React from "react";
+
+const MOBILE_BREAKPOINT = 768;
+
+export function useIsMobile() {
+  const [isMobile, setIsMobile] = React.useState<boolean | undefined>(undefined);
+
+  React.useEffect(() => {
+    const mql = window.matchMedia(`(max-width: ${MOBILE_BREAKPOINT - 1}px)`);
+    const onChange = () => {
+      setIsMobile(window.innerWidth < MOBILE_BREAKPOINT);
+    };
+    mql.addEventListener("change", onChange);
+    setIsMobile(window.innerWidth < MOBILE_BREAKPOINT);
+    return () => mql.removeEventListener("change", onChange);
+  }, []);
+
+  return !!isMobile;
+}

frontend/src/lib/cookie.client.ts

@@ -0,0 +1,24 @@
+// Client-side cookie utilities.
+// These functions manage cookies in the browser only.
+// Server actions handle cookie updates on the server side.
+
+function writeClientCookie(serializedCookie: string) {
+  // biome-ignore lint/suspicious/noDocumentCookie: This project still uses document.cookie for broad browser support.
+  document.cookie = serializedCookie;
+}
+
+export function setClientCookie(key: string, value: string, days = 7) {
+  const expires = new Date(Date.now() + days * 864e5).toUTCString();
+  writeClientCookie(`${key}=${value}; expires=${expires}; path=/`);
+}
+
+export function getClientCookie(key: string) {
+  return document.cookie
+    .split("; ")
+    .find((row) => row.startsWith(`${key}=`))
+    ?.split("=")[1];
+}
+
+export function deleteClientCookie(key: string) {
+  writeClientCookie(`${key}=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=/`);
+}

frontend/src/lib/fonts/registry.ts

@@ -0,0 +1,23 @@
+const systemSans = {
+  variable: "[--font-geist:ui-sans-serif,system-ui,sans-serif] [--font-geist-mono:ui-monospace,SFMono-Regular,Menlo,monospace]",
+};
+
+export const fontRegistry = {
+  geist: {
+    label: "System",
+    font: systemSans,
+  },
+} as const;
+
+export type FontKey = keyof typeof fontRegistry;
+
+export const fontKeys = Object.keys(fontRegistry) as FontKey[];
+
+export const fontVars = Object.values(fontRegistry)
+  .map(({ font }) => font.variable)
+  .join(" ");
+
+export const fontOptions = fontKeys.map((key) => ({
+  key,
+  label: fontRegistry[key].label,
+}));

frontend/src/lib/local-storage.client.ts

@@ -0,0 +1,19 @@
+"use client";
+
+export function setLocalStorageValue(key: string, value: string) {
+  try {
+    window.localStorage.setItem(key, value);
+  } catch (error) {
+    if (process.env.NODE_ENV !== "production") {
+      console.error("[localStorage] Failed to write value:", error);
+    }
+  }
+}
+
+export function getLocalStorageValue(key: string): string | null {
+  try {
+    return window.localStorage.getItem(key);
+  } catch {
+    return null;
+  }
+}

frontend/src/lib/preferences/layout.ts

@@ -0,0 +1,32 @@
+// Sidebar Variant
+const SIDEBAR_VARIANT_OPTIONS = [
+  { label: "Sidebar", value: "sidebar" },
+  { label: "Inset", value: "inset" },
+  { label: "Floating", value: "floating" },
+] as const;
+export const SIDEBAR_VARIANT_VALUES = SIDEBAR_VARIANT_OPTIONS.map((v) => v.value);
+export type SidebarVariant = (typeof SIDEBAR_VARIANT_VALUES)[number];
+
+// Sidebar Collapsible
+const SIDEBAR_COLLAPSIBLE_OPTIONS = [
+  { label: "Icon", value: "icon" },
+  { label: "Offcanvas", value: "offcanvas" },
+] as const;
+export const SIDEBAR_COLLAPSIBLE_VALUES = SIDEBAR_COLLAPSIBLE_OPTIONS.map((v) => v.value);
+export type SidebarCollapsible = (typeof SIDEBAR_COLLAPSIBLE_VALUES)[number];
+
+// Content Layout
+const CONTENT_LAYOUT_OPTIONS = [
+  { label: "Centered", value: "centered" },
+  { label: "Full Width", value: "full-width" },
+] as const;
+export const CONTENT_LAYOUT_VALUES = CONTENT_LAYOUT_OPTIONS.map((v) => v.value);
+export type ContentLayout = (typeof CONTENT_LAYOUT_VALUES)[number];
+
+// Navbar Style
+const NAVBAR_STYLE_OPTIONS = [
+  { label: "Sticky", value: "sticky" },
+  { label: "Scroll", value: "scroll" },
+] as const;
+export const NAVBAR_STYLE_VALUES = NAVBAR_STYLE_OPTIONS.map((v) => v.value);
+export type NavbarStyle = (typeof NAVBAR_STYLE_VALUES)[number];

frontend/src/lib/preferences/preference-runtime.ts

@@ -0,0 +1,17 @@
+"use client";
+
+import { PREFERENCE_REGISTRY, type PreferenceKey, type PreferenceValueMap } from "./preferences-config";
+import type { ResolvedThemeMode } from "./theme";
+import { applyThemeMode } from "./theme-utils";
+
+export function applyPreference<K extends PreferenceKey>(
+  key: K,
+  value: PreferenceValueMap[K],
+): ResolvedThemeMode | undefined {
+  if (key === "theme_mode") {
+    return applyThemeMode(value as PreferenceValueMap["theme_mode"]);
+  }
+
+  document.documentElement.setAttribute(PREFERENCE_REGISTRY[key].attribute, value);
+  return undefined;
+}