Improve integration with NUSC club website

[Nsohko]

We need to combine our auth with NUSC club website to make the experience more seamless for user.

The challenge is that our website supports 'auto-creation' of users by logs / admin. When these users log in, they will be 'linked' to the existing records. In contrast, NUSC Club website does not support user creation until log in, meaning there is no ability to 'link' users.

Another issue is that our roles are currently stored in our DB, not NUSC club. So they would need to query us for the roles anyway

We have 3 approaches right now:

1. Do the logic on our middleware
2. Give kaixuan relevant db tables and he can query directly
3. we merge dbs with nusc club