fix: 修复企业微信通知环境变量展开问题

- 使用 PAYLOAD=$(cat <<ENDPAYLOAD) 替代 cat > file <<EOF
- 确保环境变量在 heredoc 中正确展开
- 添加测试脚本验证环境变量展开
- 修复构建详情链接和消息内容缺失问题

docker-compose.yml

@@ -2,7 +2,7 @@ version: "3.8"
 
 services:
   novalon-website:
-    image: novalon-website:1.0.0
+    image: novalon-website:latest
     container_name: novalon-website
     restart: unless-stopped
     environment:
@@ -14,27 +14,10 @@ services:
       - RESEND_API_KEY=${RESEND_API_KEY}
       - OPS_ALERT_EMAIL=${OPS_ALERT_EMAIL:-ops@novalon.cn}
     volumes:
-      - ./novalon-website/logs:/app/logs
+      - ./logs:/app/logs
     networks:
       - novalon-network
 
-  nginx:
-    image: nginx:alpine
-    container_name: novalon-nginx
-    restart: unless-stopped
-    ports:
-      - "80:80"
-      - "443:443"
-    volumes:
-      - ./novalon-nginx/nginx.conf:/etc/nginx/nginx.conf:ro
-      - ./novalon-nginx/ssl:/etc/nginx/ssl:ro
-      - ./novalon-nginx/logs:/var/log/nginx
-      - ./certbot:/var/www/certbot
-    networks:
-      - novalon-network
-    depends_on:
-      - novalon-website
-
 networks:
   novalon-network:
-    driver: bridge
+    external: true