feat: add models for physical files, policies, and user management

- Implement PhysicalFile model to manage physical file references and reference counting.
- Create Policy model with associated options and group links for storage policies.
- Introduce Redeem and Report models for handling redeem codes and reports.
- Add Settings model for site configuration and user settings management.
- Develop Share model for sharing objects with unique codes and associated metadata.
- Implement SourceLink model for managing download links associated with objects.
- Create StoragePack model for managing user storage packages.
- Add Tag model for user-defined tags with manual and automatic types.
- Implement Task model for managing background tasks with status tracking.
- Develop User model with comprehensive user management features including authentication.
- Introduce UserAuthn model for managing WebAuthn credentials.
- Create WebDAV model for managing WebDAV accounts associated with users.

routers/api/v1/admin/__init__.py

@@ -5,15 +5,15 @@ from loguru import logger as l
 
 from middleware.auth import admin_required
 from middleware.dependencies import SessionDep
-from models import (
+from sqlmodels import (
     User, ResponseBase,
     Setting, Object, ObjectType, Share, AdminSummaryResponse, MetricsSummary, LicenseInfo, VersionInfo,
 )
-from models.base import SQLModelBase
-from models.setting import (
+from sqlmodels.base import SQLModelBase
+from sqlmodels.setting import (
     SettingItem, SettingsListResponse, SettingsUpdateRequest, SettingsUpdateResponse,
 )
-from models.setting import SettingsType
+from sqlmodels.setting import SettingsType
 from utils import http_exceptions
 from utils.conf import appmeta
 from .file import admin_file_router