feat: display multilingual release notes in version management

- Support Simplified Chinese, Traditional Chinese, English, and Japanese
- Follow the UI language and show a notice when notes are unavailable
- Avoid language and content fallbacks
- Generate Release bodies and update manifests from per-version Markdown
- Add collapsible notes, publication dates, and links to full releases
- Test publishing, legacy manifest compatibility, and localized rendering

package.json

@@ -18,7 +18,8 @@
     "@tauri-apps/plugin-dialog": "^2.7.1",
     "lucide-react": "^1.24.0",
     "react": "^19.0.0",
-    "react-dom": "^19.0.0"
+    "react-dom": "^19.0.0",
+    "react-markdown": "^10.1.0"
   },
   "devDependencies": {
     "@tauri-apps/cli": "^2.0.0",