fix: adjust api of get_records

app/api/v1/record.py

@@ -74,7 +74,7 @@ def get_records(query_data):
                                                   current_date=current_date)
     except Exception as e:
         raise BodyRecordNotFound(extra_data={'error_docs': str(e)})
-    return {'records': results}
+    return results
 
 
 @record.get('/chart')

app/api/v1/schema/record.py

@@ -32,6 +32,8 @@ class BodyRecordsIn(Schema):
 
 class BodyRecordsOut(Schema):
     records = fields.List(fields.Nested(BodyRecordOut))
+    previous_date = fields.String()
+    next_date = fields.String()
 
 
 class BodyRecordChartIn(Schema):