feat: update Daily management features and enhance date handling

- Marked the calendar/history view of dailies as completed in the TODO list.
- Improved date formatting in `formatDateForAPI` to avoid timezone issues.
- Added `getDailyDates` method in `DailyClient` and `DailyService` to retrieve all dates with dailies.
- Enhanced `POST` route to robustly parse date input for better error handling.
- Integrated daily dates loading in `DailyPageClient` for calendar display.

clients/daily-client.ts

@@ -123,10 +123,13 @@ export class DailyClient {
   }
 
   /**
-   * Formate une date pour l'API
+   * Formate une date pour l'API (évite les décalages timezone)
    */
   formatDateForAPI(date: Date): string {
-    return date.toISOString().split('T')[0]; // YYYY-MM-DD
+    const year = date.getFullYear();
+    const month = String(date.getMonth() + 1).padStart(2, '0');
+    const day = String(date.getDate()).padStart(2, '0');
+    return `${year}-${month}-${day}`; // YYYY-MM-DD
   }
 
   /**
@@ -147,6 +150,14 @@ export class DailyClient {
     
     return this.getDailyView(date);
   }
+
+  /**
+   * Récupère toutes les dates qui ont des dailies
+   */
+  async getDailyDates(): Promise<string[]> {
+    const response = await httpClient.get<{ dates: string[] }>('/daily/dates');
+    return response.dates;
+  }
 }
 
 // Instance singleton du client