refactor: date utils and all calls

src/clients/daily-client.ts

@@ -1,5 +1,6 @@
 import { httpClient } from './base/http-client';
 import { DailyCheckbox, DailyView, Task } from '@/lib/types';
+import { formatDateForAPI, parseDate } from '@/lib/date-utils';
 
 // Types pour les réponses API (avec dates en string)
 interface ApiCheckbox {
@@ -97,10 +98,7 @@ export class DailyClient {
    * Formate une date pour l'API (évite les décalages timezone)
    */
   formatDateForAPI(date: Date): string {
-    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
+    return formatDateForAPI(date);
   }
 
   /**
@@ -109,9 +107,9 @@ export class DailyClient {
   private transformCheckboxDates(checkbox: ApiCheckbox): DailyCheckbox {
     return {
       ...checkbox,
-      date: new Date(checkbox.date),
-      createdAt: new Date(checkbox.createdAt),
-      updatedAt: new Date(checkbox.updatedAt)
+      date: parseDate(checkbox.date),
+      createdAt: parseDate(checkbox.createdAt),
+      updatedAt: parseDate(checkbox.updatedAt)
     };
   }
 
@@ -120,7 +118,7 @@ export class DailyClient {
    */
   private transformDailyViewDates(view: ApiDailyView): DailyView {
     return {
-      date: new Date(view.date),
+      date: parseDate(view.date),
       yesterday: view.yesterday.map((cb: ApiCheckbox) => this.transformCheckboxDates(cb)),
       today: view.today.map((cb: ApiCheckbox) => this.transformCheckboxDates(cb))
     };