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/task/__init__.py

@@ -5,7 +5,7 @@ from loguru import logger as l
 
 from middleware.auth import admin_required
 from middleware.dependencies import SessionDep, TableViewRequestDep
-from models import (
+from sqlmodels import (
     ResponseBase, ListResponse,
     Task, TaskSummary,
 )
@@ -89,7 +89,7 @@ async def router_admin_get_task(
         "progress": task.progress,
         "error": task.error,
         "user_id": str(task.user_id),
-        "username": user.username if user else None,
+        "username": user.email if user else None,
         "props": props.model_dump() if props else None,
         "created_at": task.created_at.isoformat(),
         "updated_at": task.updated_at.isoformat(),