Refactor Catalog update/upsert endpoints and service logic

- Update endpoint now returns CatalogReadDto or NotFound
- Replace UpdateWithStoredProcedure with Upsert endpoint (PUT /upsert)
- Rename AddAsync to InsertAsync; UpdateAsync returns DTO or null
- Introduce UpsertAsync for combined insert/update logic
- Remove stored procedure-specific update/delete methods
- Use DTOs consistently in controller/service responses
- Repository methods now return entities instead of booleans

DbFirst.Domain/Repositories/ICatalogRepository.cs

@@ -6,9 +6,8 @@ public interface ICatalogRepository
 {
     Task<List<VwmyCatalog>> GetAllAsync(CancellationToken cancellationToken = default);
     Task<VwmyCatalog?> GetByIdAsync(int id, CancellationToken cancellationToken = default);
-    Task<VwmyCatalog> AddAsync(VwmyCatalog catalog, CancellationToken cancellationToken = default);
-    Task<bool> UpdateAsync(int id, VwmyCatalog catalog, CancellationToken cancellationToken = default);
-    Task<VwmyCatalog?> UpdateWithStoredProcedureAsync(VwmyCatalog catalog, CancellationToken cancellationToken = default);
+    Task<VwmyCatalog> InsertAsync(VwmyCatalog catalog, CancellationToken cancellationToken = default);
+    Task<VwmyCatalog?> UpdateAsync(int id, VwmyCatalog catalog, CancellationToken cancellationToken = default);
+    Task<VwmyCatalog?> UpsertAsync(VwmyCatalog catalog, CancellationToken cancellationToken = default);
     Task<bool> DeleteAsync(int id, CancellationToken cancellationToken = default);
-    Task<bool> DeleteWithStoredProcedureAsync(int id, CancellationToken cancellationToken = default);
 }