fix(tauri): prevent Windows zoom freeze with debouncing and transparent window

- Add 50ms debounce to zoom operations to prevent WebView2 IPC bottleneck
- Enable transparent window mode for better Windows resize/zoom performance
- Reduce zoom step from 0.2 to 0.1 for finer control

packages/tauri-app/src-tauri/tauri.conf.json

@@ -23,6 +23,7 @@
         "resizable": true,
         "fullscreen": false,
         "decorations": true,
+        "transparent": true,
         "theme": "Dark",
         "backgroundColor": "#1a1a1a",
         "zoomHotkeysEnabled": true