fix: production deployment improvements and configuration fixes

## 主要改动

### 1. 修复二维码地址硬编码问题
- 将 MainDisplay.vue 中硬编码的移动端 URL 改为环境变量配置
- 添加 VITE_MOBILE_URL 环境变量支持
- 支持通过 .env 文件动态配置移动端地址

### 2. 修复音频文件路径问题
- 修正 display.ts 中音频文件路径，添加 /screen 前缀
- 修复 BGM、抽奖音效、胜利音效的加载路径

### 3. 修复 Docker 构建问题
- 添加中国 npm 镜像配置，解决构建超时问题
- 修复缺失的 tsconfig.base.json 文件拷贝
- 修复 Redis 环境变量配置（REDIS_HOST/REDIS_PORT）
- 添加 Lua 脚本文件拷贝到生产容器

### 4. 修复前端路由和资源加载
- 添加 Vite base path 配置 (/screen/)
- 修复 Vue Router base path 配置
- 修正 Caddyfile 路由顺序，确保 /screen 路径优先匹配

### 5. 修复 TypeScript 编译错误
- LuckyDrawView.vue: 添加 round 属性类型定义
- ProgramCard.vue: 添加非空断言处理

### 6. 修复 SCSS 变量问题
- 替换未定义的 SCSS 变量为硬编码颜色值
- 修复 VoteView、ConnectionStatus、HomeView、ScanLoginView 中的样式问题

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

packages/client-screen/.env.production

@@ -1,2 +1,3 @@
 VITE_SOCKET_URL=
 VITE_API_URL=
+VITE_MOBILE_URL=

packages/client-screen/src/router/index.ts

@@ -22,7 +22,7 @@ function generateToken(code: string): string {
 export { ADMIN_TOKEN_KEY, ADMIN_ACCESS_CODE, generateToken };
 
 const router = createRouter({
-  history: createWebHistory(),
+  history: createWebHistory('/screen/'),
   routes: [
     // ============================================
     // Big Screen Display Routes (LED PC)

packages/client-screen/src/stores/display.ts

@@ -19,9 +19,9 @@ let audioPlayer: HTMLAudioElement | null = null;
 
 // Audio file paths - place audio files in public/audio/
 const AUDIO_TRACKS: Record<string, string> = {
-  bgm: '/audio/bgm.mp3',
-  lottery: '/audio/lottery.mp3',
-  fanfare: '/audio/fanfare.mp3',
+  bgm: '/screen/audio/bgm.mp3',
+  lottery: '/screen/audio/lottery.mp3',
+  fanfare: '/screen/audio/fanfare.mp3',
 };
 
 export const useDisplayStore = defineStore('display', () => {

packages/client-screen/src/views/LuckyDrawView.vue

@@ -25,7 +25,7 @@ const participantCount = ref(0);
 let previousSubPhase: string | null = null;
 
 // Prize configuration - 从服务器加载
-const prizes = ref<Array<{ level: string; name: string; winnerCount: number; poolTag?: string }>>([]);
+const prizes = ref<Array<{ level: string; name: string; winnerCount: number; poolTag?: string; round?: number }>>([]);
 
 // 从 API 获取奖项配置
 async function fetchPrizes() {

packages/client-screen/src/views/MainDisplay.vue

@@ -10,8 +10,8 @@ const displayStore = useDisplayStore();
 // QR Code Login (legacy - kept for direct access)
 const showQRLogin = ref(false);
 
-// Mobile URL for entry QR code
-const mobileUrl = 'http://192.168.1.5:5174';
+// Mobile URL for entry QR code - use environment variable or fallback to current origin
+const mobileUrl = import.meta.env.VITE_MOBILE_URL || window.location.origin;
 
 function handleLoginSuccess(data: { userId: string; userName: string; department: string; sessionToken: string }) {
   console.log('Login success:', data);

packages/client-screen/vite.config.ts

@@ -3,6 +3,7 @@ import vue from '@vitejs/plugin-vue';
 import { resolve } from 'path';
 
 export default defineConfig({
+  base: '/screen/',
   plugins: [vue()],
   resolve: {
     alias: {