Update

frontend/src/format.ts

@@ -53,6 +53,17 @@ export function currentMonth() {
   return `${now.getFullYear()}-${String(now.getMonth() + 1).padStart(2, "0")}`;
 }
 
+export function currentWeek() {
+  const now = new Date();
+  const date = new Date(Date.UTC(now.getFullYear(), now.getMonth(), now.getDate()));
+  const weekday = date.getUTCDay() || 7;
+  date.setUTCDate(date.getUTCDate() + 4 - weekday);
+  const yearStart = new Date(Date.UTC(date.getUTCFullYear(), 0, 1));
+  const week = Math.ceil(((date.getTime() - yearStart.getTime()) / 86_400_000 + 1) / 7);
+
+  return `${date.getUTCFullYear()}-W${String(week).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")}`;