refactor: enhance date handling across components

- Replaced direct date manipulations with utility functions for consistency and readability.
- Updated date formatting in `DailyCalendar`, `RecentTasks`, `CompletionRateChart`, and other components to use `formatDateShort` and `formatDateForDisplay`.
- Improved date parsing in `JiraLogs`, `JiraSchedulerConfig`, and `BackupSettingsPageClient` to ensure proper handling of date strings.
- Streamlined date initialization in `useDaily` and `DailyService` to utilize `getToday` and `getYesterday` for better clarity.

src/components/forms/RelatedTodos.tsx

@@ -4,7 +4,7 @@ import { useState, useEffect, useCallback, useTransition } from 'react';
 import { DailyCheckbox } from '@/lib/types';
 import { tasksClient } from '@/clients/tasks-client';
 import { Button } from '@/components/ui/Button';
-import { formatDateSmart } from '@/lib/date-utils';
+import { formatDateSmart, parseDate } from '@/lib/date-utils';
 import { Input } from '@/components/ui/Input';
 import { addTodoToTask, toggleCheckbox } from '@/actions/daily';
 
@@ -42,7 +42,7 @@ export function RelatedTodos({ taskId }: RelatedTodosProps) {
     startTransition(async () => {
       try {
         // Si une date est spécifiée, l'utiliser, sinon undefined (aujourd'hui par défaut)
-        const targetDate = newTodoDate ? new Date(newTodoDate) : undefined;
+        const targetDate = newTodoDate ? parseDate(newTodoDate) : undefined;
 
         const result = await addTodoToTask(taskId, newTodoText, targetDate);
 
@@ -79,7 +79,7 @@ export function RelatedTodos({ taskId }: RelatedTodosProps) {
 
   const formatDate = (date: Date | string) => {
     try {
-      const dateObj = typeof date === 'string' ? new Date(date) : date;
+      const dateObj = typeof date === 'string' ? parseDate(date) : date;
       if (isNaN(dateObj.getTime())) {
         return 'Date invalide';
       }