- Removed the `available_nodes` field from the GroupOptions model in `group.py`.
- Updated imports in `pwd.py` by removing unused imports.
- Added a comprehensive roadmap document outlining the development stages and features for DiskNext Server.
- Created a detailed README for the models directory, documenting the database models and their relationships.
- Added user authentication and registration endpoints with JWT support.
- Created tag management routes for creating and deleting tags.
- Implemented value-added service (VAS) endpoints for managing storage packs and orders.
- Developed WebDAV account management routes for creating, updating, and deleting accounts.
- Introduced slave router for handling file uploads, downloads, and aria2 task management.
- Enhanced JWT utility functions for token creation and secret key management.
- Established lifespan management for FastAPI application startup and shutdown processes.
- Integrated password handling utilities with Argon2 hashing and two-factor authentication support.
