Persist state across server restarts

[dthaler]

Using an Azure SQL Database See:

• https://learn.microsoft.com/en-us/aspnet/web-api/overview/data/using-web-api-with-entity-framework/
• https://learn.microsoft.com/en-us/aspnet/core/web-api/?view=aspnetcore-8.0
• https://learn.microsoft.com/en-us/azure/azure-sql/database/azure-sql-dotnet-entity-framework-core-quickstart?view=azuresql&tabs=visual-studio%2Cazure-portal%2Cportal

[dthaler]

Hit an error in Azure that needs investigation. Should probably do issue #33 first.