feat: revamp HomePageClient and dashboard layout

- Updated HomePageClient to replace Kanban board with a modern dashboard layout.
- Integrated DashboardStats, QuickActions, and RecentTasks components for enhanced user experience.
- Marked several tasks as complete in TODO.md, including the creation of a new dashboard and quick action features.
- Added navigation link for the new dashboard in the Header component.

components/dashboard/RecentTasks.tsx

@@ -0,0 +1,146 @@
+'use client';
+
+import { Task } from '@/lib/types';
+import { Card } from '@/components/ui/Card';
+import { TagDisplay } from '@/components/ui/TagDisplay';
+import { Badge } from '@/components/ui/Badge';
+import { useTasksContext } from '@/contexts/TasksContext';
+import { getPriorityConfig, getPriorityColorHex } from '@/lib/status-config';
+import Link from 'next/link';
+
+interface RecentTasksProps {
+  tasks: Task[];
+}
+
+export function RecentTasks({ tasks }: RecentTasksProps) {
+  const { tags: availableTags } = useTasksContext();
+  
+  // Prendre les 5 tâches les plus récentes (créées ou modifiées)
+  const recentTasks = tasks
+    .sort((a, b) => new Date(b.updatedAt).getTime() - new Date(a.updatedAt).getTime())
+    .slice(0, 5);
+
+  const getStatusColor = (status: string) => {
+    switch (status) {
+      case 'todo': return 'bg-gray-100 text-gray-800';
+      case 'inProgress': return 'bg-orange-100 text-orange-800';
+      case 'done': return 'bg-green-100 text-green-800';
+      default: return 'bg-gray-100 text-gray-800';
+    }
+  };
+
+  const getStatusText = (status: string) => {
+    switch (status) {
+      case 'todo': return 'À faire';
+      case 'inProgress': return 'En cours';
+      case 'done': return 'Terminé';
+      default: return status;
+    }
+  };
+
+  const getPriorityStyle = (priority: string) => {
+    try {
+      const config = getPriorityConfig(priority as any);
+      const hexColor = getPriorityColorHex(config.color);
+      return { color: hexColor };
+    } catch {
+      return { color: '#6b7280' }; // gray-500 par défaut
+    }
+  };
+
+  return (
+    <Card className="p-6">
+      <div className="flex items-center justify-between mb-4">
+        <h3 className="text-lg font-semibold">Tâches Récentes</h3>
+        <Link href="/kanban">
+          <button className="text-sm text-[var(--primary)] hover:underline">
+            Voir toutes
+          </button>
+        </Link>
+      </div>
+      
+      {recentTasks.length === 0 ? (
+        <div className="text-center py-8 text-[var(--muted-foreground)]">
+          <svg className="w-12 h-12 mx-auto mb-3 opacity-50" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9 5H7a2 2 0 00-2 2v10a2 2 0 002 2h8a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2" />
+          </svg>
+          <p>Aucune tâche disponible</p>
+          <p className="text-sm">Créez votre première tâche pour commencer</p>
+        </div>
+      ) : (
+        <div className="space-y-3">
+          {recentTasks.map((task) => (
+            <div
+              key={task.id}
+              className="p-3 border border-[var(--border)] rounded-lg hover:bg-[var(--card)]/50 transition-colors"
+            >
+              <div className="flex items-start justify-between gap-3">
+                <div className="flex-1 min-w-0">
+                  <div className="flex items-center gap-2 mb-1">
+                    <h4 className="font-medium text-sm truncate">{task.title}</h4>
+                    {task.source === 'jira' && (
+                      <Badge variant="outline" className="text-xs">
+                        Jira
+                      </Badge>
+                    )}
+                  </div>
+                  
+                  {task.description && (
+                    <p className="text-xs text-[var(--muted-foreground)] mb-2 line-clamp-1">
+                      {task.description}
+                    </p>
+                  )}
+                  
+                  <div className="flex items-center gap-2 flex-wrap">
+                    <Badge className={`text-xs ${getStatusColor(task.status)}`}>
+                      {getStatusText(task.status)}
+                    </Badge>
+                    
+                    {task.priority && (
+                      <span 
+                        className="text-xs font-medium"
+                        style={getPriorityStyle(task.priority)}
+                      >
+                        {(() => {
+                          try {
+                            return getPriorityConfig(task.priority as any).label;
+                          } catch {
+                            return task.priority;
+                          }
+                        })()}
+                      </span>
+                    )}
+                    
+                    {task.tags && task.tags.length > 0 && (
+                      <div className="flex gap-1">
+                        <TagDisplay 
+                          tags={task.tags.slice(0, 2)} 
+                          availableTags={availableTags}
+                          size="sm" 
+                          maxTags={2}
+                          showColors={true}
+                        />
+                        {task.tags.length > 2 && (
+                          <span className="text-xs text-[var(--muted-foreground)]">
+                            +{task.tags.length - 2}
+                          </span>
+                        )}
+                      </div>
+                    )}
+                  </div>
+                </div>
+                
+                <div className="text-xs text-[var(--muted-foreground)] whitespace-nowrap">
+                  {new Date(task.updatedAt).toLocaleDateString('fr-FR', {
+                    day: 'numeric',
+                    month: 'short'
+                  })}
+                </div>
+              </div>
+            </div>
+          ))}
+        </div>
+      )}
+    </Card>
+  );
+}