feat: initialize Annual Gala Interactive System monorepo

- Set up pnpm workspace with 4 packages: shared, server, client-mobile, client-screen
- Implement Redis atomic voting with Lua scripts (HINCRBY + distributed lock)
- Add optimistic UI with IndexedDB queue for offline resilience
- Configure Socket.io with auto-reconnection (infinite retries)
- Separate mobile (Vant) and big screen (Pixi.js) dependencies

Tech stack:
- Frontend Mobile: Vue 3 + Vant + Socket.io-client
- Frontend Screen: Vue 3 + Pixi.js + GSAP
- Backend: Express + Socket.io + Redis + Prisma/MySQL

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

packages/client-screen/vite.config.ts

@@ -0,0 +1,41 @@
+import { defineConfig } from 'vite';
+import vue from '@vitejs/plugin-vue';
+import { resolve } from 'path';
+
+export default defineConfig({
+  plugins: [vue()],
+  resolve: {
+    alias: {
+      '@': resolve(__dirname, 'src'),
+    },
+  },
+  server: {
+    port: 5174,
+    proxy: {
+      '/api': {
+        target: 'http://localhost:3000',
+        changeOrigin: true,
+      },
+      '/socket.io': {
+        target: 'http://localhost:3000',
+        ws: true,
+      },
+    },
+  },
+  build: {
+    target: 'es2020',
+    minify: 'terser',
+    rollupOptions: {
+      output: {
+        manualChunks: {
+          vue: ['vue', 'vue-router', 'pinia'],
+          pixi: ['pixi.js'],
+          gsap: ['gsap'],
+        },
+      },
+    },
+  },
+  optimizeDeps: {
+    include: ['pixi.js', 'gsap'],
+  },
+});