Exclude MANUAL data source from encoding

apps/api/src/interceptors/transform-data-source-in-response/transform-data-source-in-response.interceptor.ts

@@ -33,9 +33,12 @@ export class TransformDataSourceInResponseInterceptor<T>
                 attribute: 'dataSource',
                 valueMap: Object.keys(DataSource).reduce(
                   (valueMap, dataSource) => {
+                    if (!['MANUAL'].includes(dataSource)) {
                       valueMap[dataSource] = encodeDataSource(
                         DataSource[dataSource]
                       );
+                    }
+
                     return valueMap;
                   },
                   {}