Initial Neutralino.js POC for kokoro-widget

Lightweight alternative to the Electron build (~5MB vs ~300MB).
Uses system webview (WebKit2GTK on Linux, WKWebView on macOS,
WebView2 on Windows). Same UI and feature set as the Electron build:
WebSocket audio client, volume control, host/port settings, tray icon,
hide-to-tray on close, CLI args (--host, --port, --volume).

Note: Linux requires libwebkit2gtk-4.0 or libwebkit2gtk-4.1.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

package.json

@@ -0,0 +1,12 @@
+{
+  "name": "kokoro-widget-neutralino",
+  "version": "1.0.0",
+  "description": "Standalone PAI Voice audio widget — lightweight Neutralino.js build",
+  "scripts": {
+    "start": "neu run",
+    "build": "neu build"
+  },
+  "dependencies": {
+    "@neutralinojs/neu": "^11.7.0"
+  }
+}