Applicant Flagging Feature

[punjarmaan]

Summary: Added flagging feature to allow HR/Coordinator to flag hiring assignments on the onboarding page

Changes:

• Add flag button on each row of hiring assignment table
• Auto-sort assignments to display flagged applicants first
• Added toggle button to filter (on FE) through all, flagged, and non-flagged applicants easily
• Add flagged boolean to hiring assignment entities to store

Screen.Recording.2025-11-20.at.3.53.41.PM.mov

[ajaygandecha]

Hello team, great work on this! LGTM, very nice work on the design here - I am going to request a final review from @KrisJordan to approve and ensure the migration is setup up correctly, then we can merge.

I added a quick commit for two things:

1. The optimistic updating logic for the flagging UI works well - but if there is an error, we need to roll back the change. I added quick error handling for this (and a small refactor to add a snackbar alert if an error occurs when updating, which is helpful across to the entire feature)
2. I switched the hard-coded hex values for the flag icon to use the colors generated by material's CSS functions!