Update

backend/src/migrations.ts

@@ -86,6 +86,7 @@ export async function migrate() {
   `);
   await query("ALTER TABLE users ADD COLUMN IF NOT EXISTS zammad_api_token TEXT;");
   await query("ALTER TABLE users ADD COLUMN IF NOT EXISTS zammad_user_id BIGINT;");
+  await query("ALTER TABLE users ADD COLUMN IF NOT EXISTS zammad_email_session_webhook_enabled BOOLEAN NOT NULL DEFAULT false;");
 
   await query(`
     CREATE TABLE IF NOT EXISTS auth_sessions (
@@ -220,6 +221,27 @@ export async function migrate() {
   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("ALTER TABLE sessions ADD COLUMN IF NOT EXISTS project_teamspace_entry_id BIGINT;");
+  await query(`
+    CREATE TABLE IF NOT EXISTS zammad_email_session_events (
+      id BIGSERIAL PRIMARY KEY,
+      user_id BIGINT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+      zammad_article_id BIGINT,
+      delivery_id TEXT,
+      session_id BIGINT REFERENCES sessions(id) ON DELETE SET NULL,
+      created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+      CONSTRAINT zammad_email_session_event_source CHECK (zammad_article_id IS NOT NULL OR delivery_id IS NOT NULL)
+    );
+  `);
+  await query(`
+    CREATE UNIQUE INDEX IF NOT EXISTS idx_zammad_email_session_events_user_article
+    ON zammad_email_session_events(user_id, zammad_article_id)
+    WHERE zammad_article_id IS NOT NULL;
+  `);
+  await query(`
+    CREATE UNIQUE INDEX IF NOT EXISTS idx_zammad_email_session_events_delivery
+    ON zammad_email_session_events(delivery_id)
+    WHERE delivery_id IS NOT NULL;
+  `);
   if (adminId) {
     await query("UPDATE sessions SET user_id = $1 WHERE user_id IS NULL;", [adminId]);
   }