Verified employer badges and scam detection for job listings

User story

As a job seeker, I want all job listings to come from verified, legitimate employers so that I can apply with confidence that I'm not handing my personal information to a scammer.

Description

Job listings must only be published by accounts that have completed employer verification — proving they represent a real, registered organisation. Listings from unverified accounts are held in a review queue. Active scam detection monitors for common fraud patterns (upfront payment requests, vague role descriptions, too-good-to-be-true salaries) and flags or removes listings accordingly.

Acceptance criteria

1. Job listings are only published by employer accounts that have completed business verification (company registration or verified work domain)
2. Verified employer badge is displayed on every listing and company page
3. Unverified accounts cannot publish job listings — they are queued for manual review
4. Listings containing fraud signals (upfront payment, gift card requests, unrealistic compensation) are auto-flagged and held for review within 1 hour
5. Job seekers can report a listing as fraudulent; reports are reviewed within 4 hours
6. Employer accounts that generate verified fraud reports lose publishing privileges immediately pending investigation
7. Scam alert banner appears on listings from employers with open fraud reports

Original request

Job postings should require employer verification so job seekers aren't targeted by scam recruiters and fake job listings.