Replaced "UseKestrelConfig" with "UseCustomKestrelEndpoints" and renamed the "Kestrel" section to "ServerConfig" in both Program.cs and appsettings.json. Updated Kestrel server configuration to use the new section. Added ExceptionHandlingMiddleware to the pipeline for global exception handling.
Added "UseWindowsService" and "UseKestrelConfig" flags to appsettings.json. Defined a custom Kestrel HTTP endpoint at http://localhost:1111 to control how the application is hosted and served.
Added "SupportedCultures" for localization support and a "ConnectionStrings" section with a default SQL Server connection string. Also reformatted "AllowedHosts" for consistency.
Refactored Worker to accept IConfiguration and read the delay interval from "Worker:DelayMilliseconds" in appsettings.json, replacing the previously hardcoded value. This allows the worker execution interval to be configured without code changes. Added a minimum delay safeguard and updated appsettings.json accordingly.
Created a new EnvelopeGenerator.ServiceHost project targeting .NET 8.0. Set up minimal API host with controllers, Swagger/OpenAPI support, and development configuration files. Updated solution to include the new project with appropriate build settings.
