fix: align all 212 tests with current API and add CI workflows

Update integration tests to match actual endpoint responses: remove
data wrappers, use snake_case fields, correct HTTP methods (PUT→POST
for directory create), status codes (200→204 for mutations), and
request formats (params→json for 2FA). Fix root-level and unit tests
for DatabaseManager migration, model CRUD patterns, and JWT setup.
Add GitHub Actions and Gitea CI configs with ubuntu-latest + Python 3.13.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

tests/test_database.py

@@ -1,28 +1,63 @@
+"""
+数据库初始化和迁移测试
+"""
 import pytest
+from sqlalchemy.ext.asyncio import create_async_engine
+from sqlmodel import SQLModel
+from sqlmodel.ext.asyncio.session import AsyncSession
+from sqlalchemy.orm import sessionmaker
+
+from sqlmodels.database_connection import DatabaseManager
+
 
 @pytest.mark.asyncio
-async def test_initialize_db():
-    """测试创建数据库结构"""
-    from sqlmodels import database
-    
-    await database.init_db(url='sqlite:///:memory:')
+async def test_database_manager_init():
+    """测试 DatabaseManager 初始化"""
+    await DatabaseManager.init(
+        database_url="sqlite+aiosqlite:///:memory:",
+        debug=True,
+    )
+
+    assert DatabaseManager.engine is not None
+    assert DatabaseManager._async_session_factory is not None
+
+    # 验证可以获取会话
+    async for session in DatabaseManager.get_session():
+        assert isinstance(session, AsyncSession)
+        break
+
+    await DatabaseManager.close()
 
-@pytest.fixture
-async def db_session():
-    """测试获取数据库连接Session"""
-    from sqlmodels import database
-    
-    await database.init_db(url='sqlite:///:memory:')
-    
-    async for session in database.get_session():
-        yield session
 
 @pytest.mark.asyncio
 async def test_migration():
-    """测试数据库创建并初始化配置"""
-    from sqlmodels import migration
-    from sqlmodels import database
-    
-    await database.init_db(url='sqlite:///:memory:')
-    
-    await migration.migration()
+    """测试数据库迁移（创建默认数据）"""
+    from sqlmodels.migration import migration
+
+    await DatabaseManager.init(
+        database_url="sqlite+aiosqlite:///:memory:",
+        debug=False,
+    )
+
+    try:
+        await migration()
+
+        # 验证迁移后的数据
+        async for session in DatabaseManager.get_session():
+            from sqlmodels.setting import Setting, SettingsType
+            from sqlmodels.group import Group
+
+            # 验证设置项被创建
+            secret_key = await Setting.get(
+                session,
+                (Setting.type == SettingsType.AUTH) & (Setting.name == "secret_key")
+            )
+            assert secret_key is not None
+
+            # 验证默认用户组被创建
+            admin_group = await Group.get(session, Group.name == "管理员")
+            assert admin_group is not None
+            assert admin_group.admin is True
+            break
+    finally:
+        await DatabaseManager.close()