feat: add swimlane mode selection to KanbanFilters and BoardContainer

- Introduced `swimlanesMode` in `KanbanFilters` to toggle between 'tags' and 'priority' swimlanes.
- Updated `KanbanBoardContainer` to conditionally render `PrioritySwimlanesBoard` based on the selected mode.
- Enhanced UI to include dropdown for swimlane mode selection, improving user experience in task organization.
- Adjusted `TasksContext` to persist swimlane mode preferences, ensuring consistent behavior across sessions.

components/kanban/PrioritySwimlanesBoard.tsx

@@ -0,0 +1,65 @@
+'use client';
+
+import { Task, TaskStatus } from '@/lib/types';
+import { useMemo } from 'react';
+import { getAllPriorities } from '@/lib/status-config';
+import { SwimlanesBase, SwimlaneData } from './SwimlanesBase';
+
+interface PrioritySwimlanesoardProps {
+  tasks: Task[];
+  onDeleteTask?: (taskId: string) => Promise<void>;
+  onEditTask?: (task: Task) => void;
+  onUpdateTitle?: (taskId: string, newTitle: string) => Promise<void>;
+  onUpdateStatus?: (taskId: string, newStatus: TaskStatus) => Promise<void>;
+  compactView?: boolean;
+}
+
+export function PrioritySwimlanesBoard({ 
+  tasks, 
+  onDeleteTask, 
+  onEditTask, 
+  onUpdateTitle, 
+  onUpdateStatus, 
+  compactView = false 
+}: PrioritySwimlanesoardProps) {
+
+  // Grouper les tâches par priorités et créer les données de swimlanes
+  const swimlanesData = useMemo((): SwimlaneData[] => {
+    const grouped: { [priorityKey: string]: Task[] } = {};
+    
+    // Initialiser avec toutes les priorités
+    getAllPriorities().forEach(priority => {
+      grouped[priority.key] = [];
+    });
+    
+    tasks.forEach(task => {
+      if (grouped[task.priority]) {
+        grouped[task.priority].push(task);
+      }
+    });
+    
+    // Convertir en format SwimlaneData en respectant l'ordre de priorité
+    return getAllPriorities()
+      .sort((a, b) => b.order - a.order) // Ordre décroissant - plus importantes en haut
+      .map(priority => ({
+        key: priority.key,
+        label: priority.label,
+        icon: priority.icon,
+        color: priority.color,
+        tasks: grouped[priority.key] || []
+      }));
+  }, [tasks]);
+
+  return (
+    <SwimlanesBase
+      tasks={tasks}
+      title="Swimlanes par Priorité"
+      swimlanes={swimlanesData}
+      onDeleteTask={onDeleteTask}
+      onEditTask={onEditTask}
+      onUpdateTitle={onUpdateTitle}
+      onUpdateStatus={onUpdateStatus}
+      compactView={compactView}
+    />
+  );
+}