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/src/router/index.ts

@@ -0,0 +1,29 @@
+import { createRouter, createWebHistory } from 'vue-router';
+
+const router = createRouter({
+  history: createWebHistory(),
+  routes: [
+    {
+      path: '/',
+      name: 'main',
+      component: () => import('../views/MainDisplay.vue'),
+    },
+    {
+      path: '/draw',
+      name: 'draw',
+      component: () => import('../views/LuckyDrawView.vue'),
+    },
+    {
+      path: '/results',
+      name: 'results',
+      component: () => import('../views/VoteResultsView.vue'),
+    },
+    {
+      path: '/admin',
+      name: 'admin',
+      component: () => import('../views/AdminControl.vue'),
+    },
+  ],
+});
+
+export default router;