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-lock.json

@@ -4,6 +4,9 @@
     "requires": true,
     "packages": {
         "": {
+            "dependencies": {
+                "@alpinejs/collapse": "^3.15.8"
+            },
             "devDependencies": {
                 "@tailwindcss/forms": "^0.5.2",
                 "alpinejs": "^3.4.2",
@@ -28,6 +31,12 @@
                 "url": "https://github.com/sponsors/sindresorhus"
             }
         },
+        "node_modules/@alpinejs/collapse": {
+            "version": "3.15.8",
+            "resolved": "https://registry.npmjs.org/@alpinejs/collapse/-/collapse-3.15.8.tgz",
+            "integrity": "sha512-zZhD8DHdHuzGFe8+cHNH99K//oFutzKwcy6vagydb3KFlTzmqxTnHZo5sSV81lAazhV7qKsYCKtNV14tR9QkJw==",
+            "license": "MIT"
+        },
         "node_modules/@esbuild/aix-ppc64": {
             "version": "0.21.5",
             "resolved": "https://registry.npmjs.org/@esbuild/aix-ppc64/-/aix-ppc64-0.21.5.tgz",