feat: Phase 1 scaffold — React + Vite + TypeScript + Dashboard (v0.10.0)

- Add Vite + React + TypeScript + Tailwind CSS to Electron app
- Create Dashboard page with gateway control (start/stop/restart/status)
- Expand preload.js IPC bridge with gateway and OCM API channels
- Add IPC handlers in main.js for openclaw CLI and OCM proxy
- Dev mode loads Vite dev server, production loads built dist/
- Bump version to 0.10.0

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

postcss.config.js

@@ -0,0 +1,6 @@
+export default {
+  plugins: {
+    tailwindcss: {},
+    autoprefixer: {},
+  },
+};