feat: add user ID to GetSingleUserResponse and update PmUserQueryService for ID retrieval

ProgramManager/src/Infrastructure/GozareshgirProgramManager.Infrastructure/Services/User/PmUserQueryService.cs

@@ -17,6 +17,6 @@ public class PmUserQueryService : IPmUserQueryService
     {
         var query = new GetSingleUserQuery(accountId.ToString());
         var result = await _mediator.Send(query);
-        return result.Data?.AccountId ?? null;
+        return result.Data?.Id ?? null;
     }
 }