restworld-create-entity-and-dbcontext

Create or extend RESTworld Entity Framework Core entities and the DbContext. Use when asked to create an entity, add a database table, add a model class, add a DbSet, create or change a DbContext, derive from DbContextBase, choose between EntityBase / ConcurrentEntityBase / ChangeTrackingEntityBase, add a foreign key or navigation property, make a table temporal (SQL Server history), add seed data with HasData, add an EF Core migration, run dotnet ef, add a design-time DbContext factory, register the database with AddDbContextFactoryWithDefaults, or apply migrations on startup with MigrateDatabaseDuringStartup. Also covers the connection string name, rowversion Timestamp concurrency, CreatedAt/LastChangedBy auditing and where the files belong in the .Data project.