feat: smooth navigation adjustment and time grid actions

- Implemented View Transition API for Week Navigation (simultaneous slide-out/slide-in).
- Added Task Action Icons (Notes, Delete) to Time Grid tasks.
- Refactored navigate function to use startViewTransition.
- Updated globals.css with View Transition keyframes and rules.

src/app/globals.css

@@ -1445,12 +1445,14 @@ h3 {
 }
 
 /* Fix 2: Task Hover Actions */
-.teuxdeux-task-item {
+.teuxdeux-task-item,
+.time-slot-task {
   /* Ensure positioning context for absolute actions if needed, though flex is used */
   position: relative;
 }
 
-.teuxdeux-task-item .task-actions {
+.teuxdeux-task-item .task-actions,
+.time-slot-task .task-actions {
   display: flex;
   align-items: center;
   gap: 2px;
@@ -1461,7 +1463,8 @@ h3 {
   padding-left: 8px;
 }
 
-.teuxdeux-task-item:hover .task-actions {
+.teuxdeux-task-item:hover .task-actions,
+.time-slot-task:hover .task-actions {
   opacity: 1;
 }
 
@@ -1563,4 +1566,71 @@ h3 {
 
 .teuxdeux-btn-primary:hover {
   background: #333;
+}
+
+/* --- VIEW TRANSITION ANIMATION (TeuxDeux-like) --- */
+
+.teuxdeux-days-grid {
+  view-transition-name: week-grid;
+}
+
+@keyframes slideOutToLeft {
+  to {
+    transform: translateX(-100%);
+    opacity: 0.8;
+  }
+}
+
+@keyframes slideInFromRight {
+  from {
+    transform: translateX(100%);
+  }
+
+  to {
+    transform: translateX(0);
+  }
+}
+
+@keyframes slideOutToRight {
+  to {
+    transform: translateX(100%);
+    opacity: 0.8;
+  }
+}
+
+@keyframes slideInFromLeft {
+  from {
+    transform: translateX(-100%);
+  }
+
+  to {
+    transform: translateX(0);
+  }
+}
+
+::view-transition-group(week-grid) {
+  animation-duration: 0.5s;
+  animation-timing-function: ease-in-out;
+}
+
+/* Next Week: Old slides Left, New enters from Right */
+[data-transition-direction="next"]::view-transition-old(week-grid) {
+  animation: slideOutToLeft 0.5s ease-in-out both;
+  mix-blend-mode: normal;
+}
+
+[data-transition-direction="next"]::view-transition-new(week-grid) {
+  animation: slideInFromRight 0.5s ease-in-out both;
+  mix-blend-mode: normal;
+}
+
+/* Prev Week: Old slides Right, New enters from Left */
+[data-transition-direction="prev"]::view-transition-old(week-grid) {
+  animation: slideOutToRight 0.5s ease-in-out both;
+  mix-blend-mode: normal;
+}
+
+[data-transition-direction="prev"]::view-transition-new(week-grid) {
+  animation: slideInFromLeft 0.5s ease-in-out both;
+  mix-blend-mode: normal;
 }

src/components/TeuxDeuxView.tsx

@@ -203,11 +203,16 @@ export default function TeuxDeuxView() {
     // Navigation handlers with proper slide animation
     // Simplified: Immediate state update with slide-in animation to prevent blank flash
     const navigate = (newDate: Date, direction: 'left' | 'right') => {
-        setCurrentWeekStart(newDate);
-        setSlideDirection(direction === 'left' ? 'in-left' : 'in-right');
-
-        // Clear animation after it completes
-        setTimeout(() => setSlideDirection(null), 500);
+        // Use View Transition API for smooth 'TeuxDeux' slide (simultaneous old/new)
+        if (typeof document !== 'undefined' && 'startViewTransition' in document) {
+            document.documentElement.dataset.transitionDirection = direction === 'left' ? 'next' : 'prev';
+            (document as any).startViewTransition(() => {
+                setCurrentWeekStart(newDate);
+                setSlideDirection(null);
+            });
+        } else {
+            setCurrentWeekStart(newDate);
+        }
     };
 
     const goToPrevWeek = () => navigate(new Date(currentWeekStart.getTime() - 7 * 24 * 60 * 60 * 1000), 'right');
@@ -565,7 +570,15 @@ export default function TeuxDeuxView() {
                                                             toggleTask(task.id);
                                                         }}
                                                     >
-                                                        {task.title}
+                                                        <span style={{ display: 'block', overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap', flex: 1 }}>{task.title}</span>
+                                                        <div className="task-actions">
+                                                            <button className="task-action-btn" onClick={(e) => { e.stopPropagation(); setSelectedTaskForNotes(task); }} title="Notes">
+                                                                <svg viewBox="0 0 24 24" width="14" height="14" stroke="currentColor" strokeWidth="2" fill="none" strokeLinecap="round" strokeLinejoin="round"><line x1="3" y1="12" x2="21" y2="12"></line><line x1="3" y1="6" x2="21" y2="6"></line><line x1="3" y1="18" x2="21" y2="18"></line></svg>
+                                                            </button>
+                                                            <button className="task-action-btn delete" onClick={(e) => { e.stopPropagation(); deleteTask(task.id); }} title="Delete">
+                                                                <svg viewBox="0 0 24 24" width="14" height="14" stroke="currentColor" strokeWidth="2" fill="none" strokeLinecap="round" strokeLinejoin="round"><line x1="5" y1="12" x2="19" y2="12"></line></svg>
+                                                            </button>
+                                                        </div>
                                                     </div>
                                                 ))}
                                                 {isActive && (