feat: enhance TaskCard with tooltip functionality

- Added tooltip to TaskCard title for improved user interaction, displaying the title on hover.
- Introduced cleanup for timeout on component unmount to prevent memory leaks.
- Refactored title rendering to use a new TitleWithTooltip component for better code organization.

components/kanban/TaskCard.tsx

@@ -1,4 +1,4 @@
-import { useState, useEffect } from 'react';
+import { useState, useEffect, useRef } from 'react';
 import { Task } from '@/lib/types';
 import { formatDistanceToNow } from 'date-fns';
 import { fr } from 'date-fns/locale';
@@ -20,6 +20,8 @@ interface TaskCardProps {
 export function TaskCard({ task, onDelete, onEdit, onUpdateTitle, compactView = false }: TaskCardProps) {
   const [isEditingTitle, setIsEditingTitle] = useState(false);
   const [editTitle, setEditTitle] = useState(task.title);
+  const [showTooltip, setShowTooltip] = useState(false);
+  const timeoutRef = useRef<NodeJS.Timeout | null>(null);
   const { tags: availableTags } = useTasksContext();
 
   // Configuration du draggable
@@ -37,6 +39,16 @@ export function TaskCard({ task, onDelete, onEdit, onUpdateTitle, compactView =
   useEffect(() => {
     setEditTitle(task.title);
   }, [task.title]);
+
+  // Nettoyer le timeout au démontage
+  useEffect(() => {
+    return () => {
+      if (timeoutRef.current) {
+        clearTimeout(timeoutRef.current);
+      }
+    };
+  }, []);
+
   const handleDelete = async (e: React.MouseEvent) => {
     e.preventDefault();
     e.stopPropagation();
@@ -83,6 +95,23 @@ export function TaskCard({ task, onDelete, onEdit, onUpdateTitle, compactView =
       handleTitleCancel();
     }
   };
+
+  const handleMouseEnter = () => {
+    if (!isEditingTitle) {
+      timeoutRef.current = setTimeout(() => {
+        setShowTooltip(true);
+      }, 100);
+    }
+  };
+
+  const handleMouseLeave = () => {
+    if (timeoutRef.current) {
+      clearTimeout(timeoutRef.current);
+      timeoutRef.current = null;
+    }
+    setShowTooltip(false);
+  };
+
   // Style de transformation pour le drag
   const style = transform ? {
     transform: `translate3d(${transform.x}px, ${transform.y}px, 0)`,
@@ -92,6 +121,29 @@ export function TaskCard({ task, onDelete, onEdit, onUpdateTitle, compactView =
   const emojiRegex = /(?:[\u{1F600}-\u{1F64F}]|[\u{1F300}-\u{1F5FF}]|[\u{1F680}-\u{1F6FF}]|[\u{1F900}-\u{1F9FF}]|[\u{1F1E0}-\u{1F1FF}]|[\u{2600}-\u{26FF}]|[\u{2700}-\u{27BF}])(?:[\u{200D}][\u{1F600}-\u{1F64F}]|[\u{1F300}-\u{1F5FF}]|[\u{1F680}-\u{1F6FF}]|[\u{1F900}-\u{1F9FF}]|[\u{1F1E0}-\u{1F1FF}]|[\u{2600}-\u{26FF}]|[\u{2700}-\u{27BF}]|[\u{FE0F}])*/gu;
   const titleEmojis = task.title.match(emojiRegex) || [];
   const titleWithoutEmojis = task.title.replace(emojiRegex, '').trim();
+
+  // Composant titre avec tooltip
+  const TitleWithTooltip = () => (
+    <div className="relative flex-1">
+      <h4 
+        className="font-mono text-sm font-medium text-[var(--foreground)] leading-tight line-clamp-2 cursor-pointer hover:text-[var(--primary)] transition-colors"
+        onClick={handleTitleClick}
+        onMouseEnter={handleMouseEnter}
+        onMouseLeave={handleMouseLeave}
+        title={onUpdateTitle ? "Cliquer pour éditer" : undefined}
+      >
+        {titleWithoutEmojis}
+      </h4>
+      
+      {/* Tooltip */}
+      {showTooltip && (
+        <div className="absolute z-50 bottom-full left-0 mb-2 px-2 py-1 bg-[var(--background)] border border-[var(--border)] rounded-md shadow-lg max-w-xs whitespace-normal break-words text-xs font-mono text-[var(--foreground)]">
+          {titleWithoutEmojis}
+          <div className="absolute top-full left-2 w-0 h-0 border-l-4 border-r-4 border-t-4 border-transparent border-t-[var(--border)]"></div>
+        </div>
+      )}
+    </div>
+  );
   
   // Si pas d'emoji dans le titre, utiliser l'emoji du premier tag
   let displayEmojis: string[] = titleEmojis;
@@ -149,13 +201,7 @@ export function TaskCard({ task, onDelete, onEdit, onUpdateTitle, compactView =
               className="flex-1 bg-transparent border-none outline-none text-[var(--foreground)] font-mono text-sm font-medium leading-tight"
             />
           ) : (
-            <h4 
-              className="font-mono text-sm font-medium text-[var(--foreground)] leading-tight line-clamp-2 flex-1 cursor-pointer hover:text-[var(--primary)] transition-colors"
-              onClick={handleTitleClick}
-              title={onUpdateTitle ? "Cliquer pour éditer" : undefined}
-            >
-              {titleWithoutEmojis}
-            </h4>
+            <TitleWithTooltip />
           )}
           
           <div className="flex items-center gap-1 flex-shrink-0">
@@ -234,13 +280,7 @@ export function TaskCard({ task, onDelete, onEdit, onUpdateTitle, compactView =
             className="flex-1 bg-transparent border-none outline-none text-[var(--foreground)] font-mono text-sm font-medium leading-tight"
           />
         ) : (
-          <h4 
-            className="font-mono text-sm font-medium text-[var(--foreground)] leading-tight line-clamp-2 flex-1 cursor-pointer hover:text-[var(--primary)] transition-colors"
-            onClick={handleTitleClick}
-            title={onUpdateTitle ? "Cliquer pour éditer" : undefined}
-          >
-            {titleWithoutEmojis}
-          </h4>
+          <TitleWithTooltip />
         )}
         
         <div className="flex items-center gap-1 flex-shrink-0">