feat: integrate task creation functionality in HomePageClient and Kanban components

- Added task creation modal in HomePageClient with state management for visibility.
- Implemented `handleCreateTask` function to handle task submissions.
- Updated Kanban components to accept `onCreateTask` prop for task creation, ensuring consistent task management across the application.
- Removed unused task creation UI elements from Kanban components to streamline the interface.

components/kanban/Board.tsx

@@ -2,8 +2,6 @@
 
 import { Task, TaskStatus } from '@/lib/types';
 import { KanbanColumn } from './Column';
-import { Button } from '@/components/ui/Button';
-import { CreateTaskForm } from '@/components/forms/CreateTaskForm';
 import { CreateTaskData } from '@/clients/tasks-client';
 import { useMemo, useState } from 'react';
 import { useColumnVisibility } from '@/hooks/useColumnVisibility';
@@ -21,18 +19,16 @@ import { TaskCard } from './TaskCard';
 
 interface KanbanBoardProps {
   tasks: Task[];
-  onCreateTask?: (data: CreateTaskData) => Promise<Task | null>;
+  onCreateTask?: (data: CreateTaskData) => Promise<void>;
   onDeleteTask?: (taskId: string) => Promise<void>;
   onEditTask?: (task: Task) => void;
   onUpdateTitle?: (taskId: string, newTitle: string) => Promise<void>;
   onUpdateStatus?: (taskId: string, newStatus: TaskStatus) => Promise<void>;
-  loading?: boolean;
   compactView?: boolean;
   visibleStatuses?: TaskStatus[];
 }
 
-export function KanbanBoard({ tasks, onCreateTask, onDeleteTask, onEditTask, onUpdateTitle, onUpdateStatus, loading = false, compactView = false, visibleStatuses }: KanbanBoardProps) {
-  const [isCreateModalOpen, setIsCreateModalOpen] = useState(false);
+export function KanbanBoard({ tasks, onCreateTask, onDeleteTask, onEditTask, onUpdateTitle, onUpdateStatus, compactView = false, visibleStatuses }: KanbanBoardProps) {
   const [activeTask, setActiveTask] = useState<Task | null>(null);
   
   // Gestion de la visibilité des colonnes (utilise les props si disponibles)
@@ -72,11 +68,6 @@ export function KanbanBoard({ tasks, onCreateTask, onDeleteTask, onEditTask, onU
     allColumns.filter(column => visibleStatuses.includes(column.id)) :
     getVisibleStatuses(allColumns);
 
-  const handleCreateTask = async (data: CreateTaskData) => {
-    if (onCreateTask) {
-      await onCreateTask(data);
-    }
-  };
 
   // Gestion du début du drag
   const handleDragStart = (event: DragStartEvent) => {
@@ -111,25 +102,8 @@ export function KanbanBoard({ tasks, onCreateTask, onDeleteTask, onEditTask, onU
       onDragEnd={handleDragEnd}
     >
       <div className="h-full flex flex-col bg-[var(--background)]">
-        {/* Header avec bouton nouvelle tâche */}
-        <div className="flex justify-between items-center p-6 pb-0">
-          <div className="flex items-center gap-3">
-            <div className="w-2 h-2 bg-[var(--primary)] rounded-full animate-pulse"></div>
-            <h2 className="text-lg font-mono font-bold text-[var(--foreground)] uppercase tracking-wider">
-              Kanban Board
-            </h2>
-          </div>
-          
-          {onCreateTask && (
-            <Button
-              variant="primary"
-              onClick={() => setIsCreateModalOpen(true)}
-              disabled={loading}
-            >
-              + Nouvelle tâche
-            </Button>
-          )}
-        </div>
+        {/* Espacement supérieur */}
+        <div className="pt-4"></div>
 
 
         {/* Board tech dark */}
@@ -139,7 +113,7 @@ export function KanbanBoard({ tasks, onCreateTask, onDeleteTask, onEditTask, onU
               key={column.id}
               id={column.id}
               tasks={column.tasks}
-              onCreateTask={onCreateTask ? handleCreateTask : undefined}
+              onCreateTask={onCreateTask}
               onDeleteTask={onDeleteTask}
               onEditTask={onEditTask}
               onUpdateTitle={onUpdateTitle}
@@ -148,15 +122,6 @@ export function KanbanBoard({ tasks, onCreateTask, onDeleteTask, onEditTask, onU
           ))}
         </div>
 
-        {/* Modal de création */}
-        {onCreateTask && (
-          <CreateTaskForm
-            isOpen={isCreateModalOpen}
-            onClose={() => setIsCreateModalOpen(false)}
-            onSubmit={handleCreateTask}
-            loading={loading}
-          />
-        )}
       </div>
 
       {/* Overlay pour le drag & drop */}