refactor: simplify BoardContainer and update task management

- Removed initialTasks and initialStats props from KanbanBoardContainer, now using TasksContext for task management.
- Updated useTasks hook to include a simulated delay for sync indicator during task updates.
- Replaced KanbanBoardContainer with HomePageClient in the HomePage component for a cleaner structure.

components/HomePageClient.tsx

@@ -0,0 +1,44 @@
+'use client';
+
+import { KanbanBoardContainer } from '@/components/kanban/BoardContainer';
+import { Header } from '@/components/ui/Header';
+import { TasksProvider, useTasksContext } from '@/contexts/TasksContext';
+import { Task } from '@/lib/types';
+
+interface HomePageClientProps {
+  initialTasks: Task[];
+  initialStats: {
+    total: number;
+    completed: number;
+    inProgress: number;
+    todo: number;
+    completionRate: number;
+  };
+}
+
+function HomePageContent() {
+  const { stats, syncing } = useTasksContext();
+
+  return (
+    <div className="min-h-screen bg-slate-950">
+      <Header 
+        title="TowerControl" 
+        subtitle="Gestionnaire de tâches moderne"
+        stats={stats}
+        syncing={syncing}
+      />
+      
+      <main className="h-[calc(100vh-120px)]">
+        <KanbanBoardContainer />
+      </main>
+    </div>
+  );
+}
+
+export function HomePageClient({ initialTasks, initialStats }: HomePageClientProps) {
+  return (
+    <TasksProvider initialTasks={initialTasks} initialStats={initialStats}>
+      <HomePageContent />
+    </TasksProvider>
+  );
+}

components/kanban/BoardContainer.tsx

@@ -3,26 +3,12 @@
 import { useState } from 'react';
 import { KanbanBoard } from './Board';
 import { EditTaskForm } from '@/components/forms/EditTaskForm';
-import { useTasks } from '@/hooks/useTasks';
+import { useTasksContext } from '@/contexts/TasksContext';
 import { Task, TaskStatus } from '@/lib/types';
 import { UpdateTaskData } from '@/clients/tasks-client';
 
-interface BoardContainerProps {
-  initialTasks: Task[];
-  initialStats: {
-    total: number;
-    completed: number;
-    inProgress: number;
-    todo: number;
-    completionRate: number;
-  };
-}
-
-export function KanbanBoardContainer({ initialTasks, initialStats }: BoardContainerProps) {
-  const { tasks, loading, syncing, createTask, deleteTask, updateTask, updateTaskOptimistic } = useTasks(
-    { limit: 20 }, 
-    { tasks: initialTasks, stats: initialStats }
-  );
+export function KanbanBoardContainer() {
+  const { tasks, loading, createTask, deleteTask, updateTask, updateTaskOptimistic } = useTasksContext();
 
   const [editingTask, setEditingTask] = useState<Task | null>(null);