feat: add filter for completed tasks in the last 7 days

- Implemented `showCompletedLast7Days` filter in `KanbanFilters` to toggle visibility of tasks completed in the last week.
- Updated `GeneralFilters` to include a new filter chip for the completed tasks toggle.
- Enhanced `TasksProvider` to filter tasks based on the new criteria, improving task management capabilities.
- Adjusted `FilterSummary` to display the active filter status for better user feedback.

src/components/kanban/KanbanFilters.tsx

@@ -138,6 +138,13 @@ export function KanbanFilters({ filters, onFiltersChange, hiddenStatuses: propsH
     });
   };
 
+  const handleCompletedLast7DaysFilterToggle = () => {
+    onFiltersChange({ 
+      ...filters, 
+      showCompletedLast7Days: !filters.showCompletedLast7Days
+    });
+  };
+
   return (
     <ControlPanel className="bg-[var(--card)]/50 border-b border-[var(--border)]/50 backdrop-blur-sm">
       <div className="container mx-auto px-6 py-4">
@@ -230,7 +237,9 @@ export function KanbanFilters({ filters, onFiltersChange, hiddenStatuses: propsH
               
               <GeneralFilters
                 showWithDueDate={filters.showWithDueDate}
+                showCompletedLast7Days={filters.showCompletedLast7Days}
                 onDueDateFilterToggle={handleDueDateFilterToggle}
+                onCompletedLast7DaysFilterToggle={handleCompletedLast7DaysFilterToggle}
               />
             </div>
 

src/components/kanban/KanbanHeader.tsx

@@ -55,4 +55,4 @@ export function KanbanHeader({
       )}
     </>
   );
-}
+}

src/components/kanban/filters/GeneralFilters.tsx

@@ -4,10 +4,17 @@ import { FilterChip } from '@/components/ui';
 
 interface GeneralFiltersProps {
   showWithDueDate?: boolean;
+  showCompletedLast7Days?: boolean;
   onDueDateFilterToggle: () => void;
+  onCompletedLast7DaysFilterToggle: () => void;
 }
 
-export function GeneralFilters({ showWithDueDate = false, onDueDateFilterToggle }: GeneralFiltersProps) {
+export function GeneralFilters({ 
+  showWithDueDate = false, 
+  showCompletedLast7Days = false,
+  onDueDateFilterToggle,
+  onCompletedLast7DaysFilterToggle 
+}: GeneralFiltersProps) {
   return (
     <div className="space-y-2">
       <label className="block text-xs font-mono font-medium text-[var(--muted-foreground)] uppercase tracking-wider">
@@ -30,6 +37,23 @@ export function GeneralFilters({ showWithDueDate = false, onDueDateFilterToggle
         >
           Avec date de fin
         </FilterChip>
+        
+        <FilterChip
+          onClick={onCompletedLast7DaysFilterToggle}
+          variant={showCompletedLast7Days ? 'selected' : 'default'}
+          icon={
+            <svg 
+              className="w-4 h-4"
+              fill="none" 
+              stroke="currentColor" 
+              viewBox="0 0 24 24"
+            >
+              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z" />
+            </svg>
+          }
+        >
+          Complété les 7 derniers jours
+        </FilterChip>
       </div>
     </div>
   );

src/components/ui/FilterSummary.tsx

@@ -9,6 +9,7 @@ interface FilterSummaryProps {
     priorities?: string[];
     tags?: string[];
     showWithDueDate?: boolean;
+    showCompletedLast7Days?: boolean;
     showJiraOnly?: boolean;
     hideJiraTasks?: boolean;
     jiraProjects?: string[];
@@ -72,6 +73,15 @@ export function FilterSummary({
     });
   }
 
+  // Affichage complété les 7 derniers jours
+  if (filters.showCompletedLast7Days) {
+    filterItems.push({
+      label: 'Affichage',
+      value: 'Complété les 7 derniers jours',
+      variant: 'success'
+    });
+  }
+
   // Jira
   if (filters.showJiraOnly) {
     filterItems.push({

src/components/ui/TaskCard.tsx

@@ -517,10 +517,11 @@ const TaskCard = forwardRef<HTMLDivElement, TaskCardProps>(
                     </Badge>
                   )}
 
-                  {/* Statut terminé */}
+                  {/* Statut terminé avec date de résolution */}
                   {completedAt && (
-                    <span className="text-emerald-400 font-mono font-bold">
-                      ✓ DONE
+                    <span className="text-emerald-400 font-mono font-bold flex items-center gap-1">
+                      <span>✓</span>
+                      <span>{formatDateForDisplay(completedAt, 'DISPLAY_SHORT')}</span>
                     </span>
                   )}