- Added organization model and membership management to support multi-tenancy.
- Updated file and folder routes to include organization context for ownership checks.
- Integrated Google Drive connection management per organization, ensuring proper authorization and folder structure.
- Enhanced user account deletion to prevent removal if the user owns organizations.
- Introduced middleware for organization validation and admin role checks.
- Created organization admin routes for managing memberships and retrieving statistics.
- Implemented token encryption/decryption for secure Google Drive token storage.
- Updated serializers to include organization data in user memberships.
- Added database migration for new organization and membership tables.
