fix 按设备维度控制role分配

Src/Dlhis.Basic/Device/Request/DevicePermissionsAssignToDeviceRequest.cs

@@ -45,5 +45,9 @@ public class DevicePermissionsAssignToDeviceRequest : IValidatableObject
                 yield return new ValidationResult("请明确具体的厂区", new[] { nameof(TenantId) });
             }
         }
+        else if (AssignType == AssignTypeEnumType.Role)
+        {
+            yield return new ValidationResult("暂不支持角色分配", new[] { nameof(AssignType) });
+        }
     }
 }