🔧 Fix Cloudflare build issues and restore Docker support

✅ Cloudflare Pages Fixes:
- Fix IPTV page Suspense boundary issue for static generation
- Resolve ESLint warnings (unused imports, console statements)
- Remove dependency on useSearchParams for static builds
- Improve error handling without console.error

🐳 Docker Support Restored:
- Add complete Docker configuration (Dockerfile, docker-compose.yml)
- Support both basic (localstorage) and Redis deployment modes
- Multi-platform builds (amd64/arm64) via GitHub Actions
- Production-ready with health checks and proper security

📚 Documentation Updates:
- Comprehensive deployment guide for all platforms
- Docker quick start and production examples
- Environment variable documentation
- Updated README with multi-platform support

🎯 Key Improvements:
- Multiple deployment options: Cloudflare + Docker + Vercel
- Better error boundaries and loading states
- Optimized build processes for each platform
- Enhanced developer experience

This fixes the Cloudflare Pages deployment while providing
Docker as an alternative self-hosting option.

Dockerfile

@@ -0,0 +1,64 @@
+# ---- 第 1 阶段：安装依赖 ----
+FROM --platform=$BUILDPLATFORM node:20-alpine AS deps
+
+# 启用 corepack 并激活 pnpm（Node20 默认提供 corepack）
+RUN corepack enable && corepack prepare pnpm@latest --activate
+
+WORKDIR /app
+
+# 仅复制依赖清单，提高构建缓存利用率
+COPY package.json pnpm-lock.yaml ./
+
+# 安装所有依赖（含 devDependencies，后续会裁剪）
+RUN pnpm install --frozen-lockfile
+
+# ---- 第 2 阶段：构建项目 ----
+FROM --platform=$BUILDPLATFORM node:20-alpine AS builder
+RUN corepack enable && corepack prepare pnpm@latest --activate
+WORKDIR /app
+
+# 复制依赖
+COPY --from=deps /app/node_modules ./node_modules
+# 复制全部源代码
+COPY . .
+
+# 设置Docker环境标识
+ENV DOCKER_ENV=true
+ENV NODE_ENV=production
+
+# For Docker builds, force dynamic rendering to read runtime environment variables.
+RUN sed -i "/const inter = Inter({ subsets: \['latin'] });/a export const dynamic = 'force-dynamic';" src/app/layout.tsx
+
+# 生成生产构建
+RUN pnpm run build
+
+# ---- 第 3 阶段：生成运行时镜像 ----
+FROM node:20-alpine AS runner
+
+# 创建非 root 用户
+RUN addgroup -g 1001 -S nodejs && adduser -u 1001 -S nextjs -G nodejs
+
+WORKDIR /app
+ENV NODE_ENV=production
+ENV HOSTNAME=0.0.0.0
+ENV PORT=3000
+ENV DOCKER_ENV=true
+
+# 从构建器中复制 standalone 输出
+COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
+# 从构建器中复制 scripts 目录
+COPY --from=builder --chown=nextjs:nodejs /app/scripts ./scripts
+# 从构建器中复制 start.js
+COPY --from=builder --chown=nextjs:nodejs /app/start.js ./start.js
+# 从构建器中复制 public 和 .next/static 目录
+COPY --from=builder --chown=nextjs:nodejs /app/public ./public
+COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
+COPY --from=builder --chown=nextjs:nodejs /app/config.json ./config.json
+
+# 切换到非特权用户
+USER nextjs
+
+EXPOSE 3000
+
+# 使用自定义启动脚本，先预加载配置再启动服务器
+CMD ["node", "start.js"]