Move the jobs board in-app and let verified club reps post jobs

[jenul-ferdinand]

Problem

• Jobs live on an external Notion board that we treat as the source of truth.
• Notion is not reliable for this:
  • No owner keeps it current, so postings go stale.
  • Anyone with the link edits it; there is no check on who posts.
  • It sits outside the app, so it is not tied to accounts, moderation, or notifications.

Proposal

• Bring the jobs board into the app so MonSTAR owns and serves the postings.
• Let verified club reps post their own jobs directly on the site instead of routing everything through one Notion page.

Notes

• There is no jobs feature or club-rep concept in the codebase yet. The user model only has admin and verified booleans:

  monstar/backend/src/domains/identity/users/user.model.ts

  Lines 16 to 18 in 6772555

  	admin: { type: Boolean, default: false },
  	verified: { type: Boolean, default: false },

• verified today means email-verified, not "trusted to post jobs", so this needs a new club-rep role or flag.

Open questions

• How does someone become a verified club rep? Manual admin approval, or a self-serve request with review?
• Do postings need admin moderation before they go live?
• Should postings expire or need renewal so the board stays fresh?