Fix Docker configuration for deployment

- Update backend Dockerfile to use Rust 1.85 (edition 2024 support)
- Add Aliyun mirrors for Alpine packages
- Add rsproxy.cn mirror for cargo crates
- Enable static OpenSSL linking
- Fix frontend Dockerfile to use NEXT_PUBLIC_API_BASE
- Add mkdir -p public to ensure public dir exists
- Update docker-compose files to use correct env var names
- Add docker-compose.deploy.yml for production deployment

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

docker-compose.prod.yml

@@ -44,14 +44,14 @@ services:
       dockerfile: Dockerfile
       args:
         # 构建时注入 API URL（用于 Next.js 静态优化）
-        NEXT_PUBLIC_API_URL: ${NEXT_PUBLIC_API_URL:-}
+        NEXT_PUBLIC_API_BASE: ${NEXT_PUBLIC_API_BASE:-}
     container_name: notify-frontend
     restart: unless-stopped
     depends_on:
       - backend
     environment:
       # 运行时 API URL（用于 SSR）
-      NEXT_PUBLIC_API_URL: ${NEXT_PUBLIC_API_URL:-}
+      NEXT_PUBLIC_API_BASE: ${NEXT_PUBLIC_API_BASE:-}
     ports:
       - "127.0.0.1:3000:3000"