- Consolidated commands and handlers into single files for better organization.
- Updated file naming conventions for commands and queries.
- Added explicit Git operation rules to prevent automatic commits/pushes.
- Introduced new projects and restructured solution file (`legacy` folder).
- Refactored `CreateEmailAccountCommand`, `ProcessEmailCommand`, and others to use `IUnitOfWork`.
- Enhanced `ProcessEmailCommandHandler` with attachment validation and error handling.
- Removed redundant handler files after consolidation.
- Improved code consistency and added `TODO` comments for future enhancements.
