chore(server): open-api memory lane number generation (#8314)

chore(server): openaapi memory lane number generation

mobile/openapi/doc/MemoryLaneResponseDto.md

@@ -10,7 +10,7 @@ Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 **assets** | [**List<AssetResponseDto>**](AssetResponseDto.md) |  | [default to const []]
 **title** | **String** |  | 
-**yearsAgo** | **num** |  | 
+**yearsAgo** | **int** |  | 
 
 [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
 

mobile/openapi/lib/model/memory_lane_response_dto.dart

@@ -22,7 +22,7 @@ class MemoryLaneResponseDto {
 
   String title;
 
-  num yearsAgo;
+  int yearsAgo;
 
   @override
   bool operator ==(Object other) => identical(this, other) || other is MemoryLaneResponseDto &&
@@ -58,7 +58,7 @@ class MemoryLaneResponseDto {
       return MemoryLaneResponseDto(
         assets: AssetResponseDto.listFromJson(json[r'assets']),
         title: mapValueOfType<String>(json, r'title')!,
-        yearsAgo: num.parse('${json[r'yearsAgo']}'),
+        yearsAgo: mapValueOfType<int>(json, r'yearsAgo')!,
       );
     }
     return null;

mobile/openapi/test/memory_lane_response_dto_test.dart

@@ -26,7 +26,7 @@ void main() {
       // TODO
     });
 
-    // num yearsAgo
+    // int yearsAgo
     test('to test the property `yearsAgo`', () async {
       // TODO
     });