- Updated namespace for `ResetEmailTemplateCommand` and added a constructor for flexible initialization.
- Introduced `ChangedWhen` property in `UpdateEmailTemplateCommand` to track modification time.
- Refactored `UpdateEmailTemplateCommandHandler` for improved email template retrieval logic.
- Modified `EmailTemplateController` method signatures and logic for clarity and consistency.
- Added `EmailTemplate` entry in `appsettings.json` for database trigger configuration.
- Updated DependencyInjection to include new command handler.
- Modified CreateEnvelopeReceiverCommand for nullable responses.
- Altered SQL command in EnvelopeReceiverAddReadSQL.
- Refactored EnvelopeReceiverController with new dependencies and improved CreateAsync method.
- Expanded appsettings.json with additional configuration settings.
- Introduced new DTOs for signatures and receivers in CreateEnvelopeReceiverDtos.
