feat(mixin): add TableBaseMixin and UUIDTableBaseMixin for async CRUD operations

- Implemented TableBaseMixin providing generic CRUD methods and automatic timestamp management.
- Introduced UUIDTableBaseMixin for models using UUID as primary keys.
- Added ListResponse for standardized paginated responses.
- Created TimeFilterRequest and PaginationRequest for filtering and pagination parameters.
- Enhanced get_with_count method to return both item list and total count.
- Included validation for time filter parameters in TimeFilterRequest.
- Improved documentation and usage examples throughout the code.

models/user_authn.py

@@ -4,7 +4,8 @@ from uuid import UUID
 from sqlalchemy import Column, Text
 from sqlmodel import Field, Relationship
 
-from .base import TableBase, SQLModelBase
+from .base import SQLModelBase
+from .mixin import TableBaseMixin
 
 if TYPE_CHECKING:
     from .user import User
@@ -24,7 +25,7 @@ class AuthnResponse(SQLModelBase):
 
 # ==================== 数据库模型 ====================
 
-class UserAuthn(TableBase, table=True):
+class UserAuthn(SQLModelBase, TableBaseMixin):
     """用户 WebAuthn 凭证模型，与 User 为多对一关系"""
 
     credential_id: str = Field(max_length=255, unique=True, index=True)