feat: refactor ObjectivesBoard and enhance column visibility management

- Replaced local state management in `ObjectivesBoard` with `useObjectivesCollapse` hook for better state handling.
- Updated collapse button logic to use the new hook's toggle function, improving code clarity.
- Refactored `useColumnVisibility` to load user preferences on mount and persist visibility changes, enhancing user experience.
- Integrated user preferences for Kanban filters in `TasksContext`, allowing for persistent filter settings across sessions.

src/contexts/TasksContext.tsx

@@ -1,8 +1,9 @@
 'use client';
 
-import { createContext, useContext, ReactNode, useState, useMemo } from 'react';
+import { createContext, useContext, ReactNode, useState, useMemo, useEffect } from 'react';
 import { useTasks } from '@/hooks/useTasks';
 import { useTags } from '@/hooks/useTags';
+import { userPreferencesService } from '@/services/user-preferences';
 import { Task, Tag } from '@/lib/types';
 import { CreateTaskData, UpdateTaskData, TaskFilters } from '@/clients/tasks-client';
 import { KanbanFilters } from '@/components/kanban/KanbanFilters';
@@ -52,9 +53,44 @@ export function TasksProvider({ children, initialTasks, initialStats }: TasksPro
 
   const { tags, loading: tagsLoading, error: tagsError } = useTags();
   
-  // État des filtres Kanban
+  // État des filtres Kanban avec persistance
   const [kanbanFilters, setKanbanFilters] = useState<KanbanFilters>({});
 
+  // Charger les préférences au montage
+  useEffect(() => {
+    const savedFilters = userPreferencesService.getKanbanFilters();
+    const savedViewPrefs = userPreferencesService.getViewPreferences();
+    
+    setKanbanFilters({
+      search: savedFilters.search,
+      tags: savedFilters.tags,
+      priorities: savedFilters.priorities,
+      showCompleted: savedFilters.showCompleted,
+      compactView: savedViewPrefs.compactView,
+      swimlanesByTags: savedViewPrefs.swimlanesByTags
+    });
+  }, []);
+
+  // Fonction pour mettre à jour les filtres avec persistance
+  const updateKanbanFilters = (newFilters: KanbanFilters) => {
+    setKanbanFilters(newFilters);
+    
+    // Sauvegarder les filtres
+    userPreferencesService.saveKanbanFilters({
+      search: newFilters.search,
+      tags: newFilters.tags,
+      priorities: newFilters.priorities,
+      showCompleted: newFilters.showCompleted
+    });
+    
+    // Sauvegarder les préférences de vue
+    userPreferencesService.saveViewPreferences({
+      compactView: newFilters.compactView || false,
+      swimlanesByTags: newFilters.swimlanesByTags || false,
+      showObjectives: true // Toujours visible pour l'instant
+    });
+  };
+
   // Séparer les tâches épinglées (objectifs) des autres
   const { pinnedTasks, regularTasks } = useMemo(() => {
     const pinnedTagNames = tags.filter(tag => tag.isPinned).map(tag => tag.name);
@@ -113,7 +149,7 @@ export function TasksProvider({ children, initialTasks, initialStats }: TasksPro
     tagsLoading,
     tagsError,
     kanbanFilters,
-    setKanbanFilters,
+    setKanbanFilters: updateKanbanFilters,
     filteredTasks,
     pinnedTasks
   };