Add original name support for shows: implement API endpoint to set original name, update Show and ShowDto models to include original name field, and enhance UI components for managing original names in show metadata. Update validation and database schema accordingly.

backend/src/TeleWave.Application/Library/GetShow/GetShowQueryHandler.cs

@@ -54,6 +54,7 @@ public sealed class GetShowQueryHandler(IAppDbContext dbContext)
             new ShowDto(
                 show.Id,
                 show.Name,
+                show.OriginalName,
                 show.Kind,
                 show.Description,
                 show.MetadataProvider,