feat(03-01): add expandable note history panel with search

- Install @alpinejs/collapse plugin for smooth expand/collapse animation
- Fix controller ordering: notes now explicitly ordered newest first via latest('created_at')
- Note count badge is now clickable button to toggle history panel
- Add expansion panel row with loading state, search filter, empty state
- Search filters notes by content or author name (client-side)
- Panel collapses cleanly, search query resets on close
- Cache sync: new notes from inline form appear in history immediately
- Display format: author name and formatted datetime (YYYY年MM月DD日 HH:mm)
- Empty state shows '尚無備註', no-results shows '找不到符合的備忘錄'

package.json

@@ -14,5 +14,8 @@
         "postcss": "^8.4.31",
         "tailwindcss": "^3.1.0",
         "vite": "^5.0.0"
+    },
+    "dependencies": {
+        "@alpinejs/collapse": "^3.15.8"
     }
 }