feat(worker): scaffold Vite+React PWA with token storage and typed API client

apps/worker/vite.config.ts

@@ -0,0 +1,7 @@
+import { defineConfig } from 'vite';
+import react from '@vitejs/plugin-react';
+
+export default defineConfig({
+  plugins: [react()],
+  server: { host: true, port: 5173 }, // host:true → reachable from a phone on the LAN
+});