- Added configuration options for Stalwart hosted mail in .env.example.
- Updated Docker Compose to include Stalwart service with health checks.
- Introduced new API endpoints for managing mail domains and migration projects.
- Enhanced Authentik blueprints for user enrollment and post-migration security.
- Updated OAuth handling for Google and Microsoft migration processes.
- Improved error handling and response structures in the mail API.
- Added integration tests for email claiming and migration workflows.
