refactor: archive 12 dead gRPC RPCs with [ARCHIVED] markers

Archived RPCs (code preserved, marked obsolete):
- fms.proto: excluded from csproj (CreateNewFileInfo, DeleteFileInfo)
- UserOrderService: GetOrdersByDateRange, CreateNewOrderForCustomer, SubmitOrderForCustomer
- ConfigurationService: DeactivateConfiguration, GetConfigurationHistory
- CityService: UpdateCity, DeleteCity
- HealthService: GetServiceHealth
- CategoryService: GetCategoryByIdForCustomer
- inventory.proto: BulkAdjustStock (no implementation existed)

All archived RPCs wrapped in #region [ARCHIVED] with [Obsolete] attributes.
No code deleted — archive only. Build passes with 0 errors.

src/CMSMicroservice.WebApi/Services/CategoryService.cs

@@ -98,8 +98,11 @@ public class CategoryService : CategoryContract.CategoryContractBase
         return response;
     }
 
+    #region [ARCHIVED] GetCategoryByIdForCustomer — تکراری: GetCategory (admin) + GetAllCategoriesForCustomer کافی است
+    [Obsolete("ARCHIVED: Use GetCategory or GetAllCategoriesForCustomer instead")]
     public override async Task<GetCategoryByIdForCustomerResponse> GetCategoryByIdForCustomer(GetCategoryByIdForCustomerRequest request, ServerCallContext context)
     {
+        // [ARCHIVED] duplicate — GetCategory + GetAllCategoriesForCustomer cover this
         var query = new GetCategoryQuery { Id = request.Id };
         var result = await _sender.Send(query, context.CancellationToken);
         
@@ -118,4 +121,5 @@ public class CategoryService : CategoryContract.CategoryContractBase
             }
         };
     }
+    #endregion
 }