Add manifest integration tests (#18203)

- add integration test on sync manifest endpoint
- fix invalid standard uuid + migration command

packages/twenty-server/src/engine/metadata-modules/flat-field-metadata/utils/from-flat-field-metadata-to-field-metadata-dto.util.ts

@@ -14,6 +14,7 @@ export const fromFlatFieldMetadataToFieldMetadataDto = (
     isUnique,
     settings,
     id,
+    universalIdentifier,
     label,
     name,
     objectMetadataId,
@@ -32,6 +33,7 @@ export const fromFlatFieldMetadataToFieldMetadataDto = (
 
   return {
     id,
+    universalIdentifier,
     label,
     name,
     objectMetadataId,