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>

backend/tests/test_docs_security.py

@@ -0,0 +1,76 @@
+"""Swagger / ReDoc / OpenAPI 文档路由安全开关测试。
+
+生产环境（APP_ENV=prod）默认关闭 /docs、/redoc、/openapi.json，
+避免未授权访问泄露 API 结构；本地开发环境默认开放，可用 ENABLE_DOCS 覆盖。
+"""
+from __future__ import annotations
+
+import pytest
+
+from app.core.config import docs_kwargs, get_settings
+
+
+@pytest.fixture(autouse=True)
+def _reset_settings_cache():
+    """每次测试前后清空 get_settings 的 lru_cache，避免环境变量互相污染。"""
+    get_settings.cache_clear()
+    yield
+    get_settings.cache_clear()
+
+
+def test_docs_kwargs_enabled() -> None:
+    assert docs_kwargs(True) == {}
+
+
+def test_docs_kwargs_disabled() -> None:
+    assert docs_kwargs(False) == {"docs_url": None, "redoc_url": None, "openapi_url": None}
+
+
+def test_docs_disabled_by_default_in_prod(monkeypatch) -> None:
+    monkeypatch.delenv("ENABLE_DOCS", raising=False)
+    monkeypatch.setenv("APP_ENV", "prod")
+    assert get_settings().enable_docs is False
+
+
+def test_docs_enabled_by_default_outside_prod(monkeypatch) -> None:
+    monkeypatch.delenv("ENABLE_DOCS", raising=False)
+    monkeypatch.setenv("APP_ENV", "local")
+    assert get_settings().enable_docs is True
+
+
+def test_docs_env_override_enables_in_prod(monkeypatch) -> None:
+    monkeypatch.setenv("ENABLE_DOCS", "true")
+    monkeypatch.setenv("APP_ENV", "prod")
+    assert get_settings().enable_docs is True
+
+
+def test_docs_env_override_disables_outside_prod(monkeypatch) -> None:
+    monkeypatch.setenv("ENABLE_DOCS", "false")
+    monkeypatch.setenv("APP_ENV", "local")
+    assert get_settings().enable_docs is False
+
+
+def test_create_app_disables_docs_in_prod(monkeypatch, tmp_path) -> None:
+    pytest.importorskip("fastapi")
+    from app.main import create_app
+
+    monkeypatch.delenv("ENABLE_DOCS", raising=False)
+    monkeypatch.setenv("APP_ENV", "prod")
+    monkeypatch.setenv("LOG_DIR", str(tmp_path))
+    app = create_app()
+    assert app.docs_url is None
+    assert app.redoc_url is None
+    assert app.openapi_url is None
+
+
+def test_create_app_enables_docs_outside_prod(monkeypatch, tmp_path) -> None:
+    pytest.importorskip("fastapi")
+    from app.main import create_app
+
+    monkeypatch.delenv("ENABLE_DOCS", raising=False)
+    monkeypatch.setenv("APP_ENV", "local")
+    monkeypatch.setenv("LOG_DIR", str(tmp_path))
+    app = create_app()
+    assert app.docs_url == "/docs"
+    assert app.redoc_url == "/redoc"
+    assert app.openapi_url == "/openapi.json"