Fix database entity configurations and missing properties

- Fixed VehicleSpec index: Changed from 'vehicleId' to 'modelId' to match entity field
- Fixed VehiclePhoto index: Changed from 'vehicleId' to 'modelId' to match entity field
- Added missing 'note' property to Order entity with BsonElement attribute
- Added UpdateNote() method to Order entity
- Removed duplicate IsActive property from User entity (already existed)
- All entities now properly configured for MongoDB with correct field mappings
- Build successful with no compilation errors

Author: Dang

VehicleShowroomManagement/src/Domain/Entities/Order.cs

@@ -41,6 +41,8 @@ public class Order
         [BsonElement("salePrice")]
         public decimal SalePrice { get; private set; }
 
+        [BsonElement("note")]
+        public string? Note { get; private set; }
 
         [BsonElement("reservationFrom")]
         public DateTime? ReservationFrom { get; private set; }
@@ -114,6 +116,12 @@ public void SetDealer(string dealerId)
         UpdatedAt = DateTime.UtcNow;
     }
 
+    public void UpdateNote(string? note)
+    {
+        Note = note;
+        UpdatedAt = DateTime.UtcNow;
+    }
+
     public void Complete()
     {
         if (Status != OrderStatus.Confirmed)

VehicleShowroomManagement/src/Infrastructure/Persistence/VehicleShowroomDbContext.cs

@@ -160,15 +160,15 @@ private async Task CreateIndexesAsync<T>(IMongoCollection<T> collection, string
 
                 case "VEHICLE_PHOTO":
                     indexModels.Add(new CreateIndexModel<T>(
-                        Builders<T>.IndexKeys.Ascending("vehicleId").Ascending("displayOrder"),
-                        new CreateIndexOptions { Name = "VehicleId_DisplayOrder" }
+                        Builders<T>.IndexKeys.Ascending("modelId").Ascending("displayOrder"),
+                        new CreateIndexOptions { Name = "ModelId_DisplayOrder" }
                     ));
                     break;
 
                 case "VEHICLE_SPEC":
                     indexModels.Add(new CreateIndexModel<T>(
-                        Builders<T>.IndexKeys.Ascending("vehicleId").Ascending("groupName").Ascending("displayOrder"),
-                        new CreateIndexOptions { Name = "VehicleId_GroupName_DisplayOrder" }
+                        Builders<T>.IndexKeys.Ascending("modelId").Ascending("groupName").Ascending("displayOrder"),
+                        new CreateIndexOptions { Name = "ModelId_GroupName_DisplayOrder" }
                     ));
                     break;