Merge Final to development (#45)

* JSAEM2-44 fixed: correct the token verify middleware

* JSAEM 2-47 fixed: model name consistent

* JSAEM2-45 fixed: separate the backend files

* feat: create branch for the final

* fixed: return username for session endpoint

* feat: update the family members

* update: fix label data bug

* fixed: get users without self, get username of the trans creator

* fixed: username instead of id

* fix: get status code in res body

* feat: add endpoint to query family members

* fixed: use username instead of id

* fixed: bug

Co-authored-by: Katy <[email protected]>