- Introduced conditional EF Core configuration to support InMemoryDatabase for testing or lightweight runs.
- Added `UseInMemoryDb` config flag read from appsettings.
- Retained SQL Server as the default when the flag is false.
- Added missing Quartz namespace import.
- Replaced manual service setup with AddEnvelopeGenerator fluent configuration
- Added EnvelopeGenerator.DependencyInjection namespace
- Integrated distributed SQL Server cache for EG services
- Improved DI structure and reduced obsolete warnings
- Added references to EnvelopeGenerator.Application, Infrastructure, and EF Core.
- Configured DB context with SQL Server connection string from configuration.
- Registered EnvelopeGenerator services and infrastructure with dependency injection.
- Preserved warnings suppression for obsolete members.
- Structured DI registration under a dedicated region for clarity.