chore: 忽略离线部署包，提交安全加固、数据库初始化与文档

- .gitignore: 忽略 docker/offline 离线部署包（镜像/运行时等大文件）
- 安全加固: 新增 compute/api/security.py 及各端安全测试，补充 docs/security-hardening.md
- 数据库: 新增完整初始化 SQL 与 docs/database-config.md
- 数据转换与评测: 修复类型检查、增强校验并补充测试
- Docker 配置与环境变量更新

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

docker/compute/docker-compose.yml

@@ -11,6 +11,7 @@ services:
       COMPUTE_HOST_ID: ${COMPUTE_HOST_ID:-gpu-node-01}
       COMPUTE_EXECUTION_MODE: ${COMPUTE_EXECUTION_MODE:-real}
       MODELTF_ROUTE_PREFIX: ${MODELTF_ROUTE_PREFIX:-/modelTF}
+      ENABLE_DOCS: ${ENABLE_DOCS:-false}
       COMPUTE_AUTH_ENABLED: ${COMPUTE_AUTH_ENABLED:-true}
       COMPUTE_SERVICE_TOKEN: ${COMPUTE_SERVICE_TOKEN:-change_me}
       ENABLE_APP_CALLBACK: ${ENABLE_APP_CALLBACK:-false}