feat: add schedulers feature with task management

- Introduced SchedulersPage for managing scheduled tasks.
- Implemented CreateTaskDialog for creating new scheduled tasks.
- Added SchedulersHeader for filtering and searching tasks.
- Created SchedulersTable to display scheduled tasks with actions.
- Implemented loading and error states with SchedulersLoadingStates.
- Added API service for task management in schedulers.
- Enhanced date formatting utility to handle timezone.
- Updated AppSidebar and AppRoutes to include SchedulersPage.

src/utils/format-date.ts

@@ -112,4 +112,34 @@ export function formatDateDistanceToNow(
   }
 
   return formatDistanceToNow(date, { addSuffix: true });
+}
+
+/**
+ * Format a date string with timezone consideration
+ * @param dateString - The date string to format
+ * @param timezone - The target timezone (default: 'UTC')
+ * @returns Formatted date string with timezone
+ */
+export function formatDateTime(dateString: string, timezone: string = 'UTC'): string {
+  try {
+    const date = new Date(dateString)
+    
+    if (isNaN(date.getTime())) {
+      return 'Invalid Date'
+    }
+
+    const formatter = new Intl.DateTimeFormat('fr-FR', {
+      timeZone: timezone,
+      year: 'numeric',
+      month: '2-digit',
+      day: '2-digit',
+      hour: '2-digit',
+      minute: '2-digit',
+      hour12: false,
+    })
+
+    return formatter.format(date)
+  } catch {
+    return 'Invalid Date'
+  }
 }