root af3856b103 Rate/margin awareness: implied pay rate per worker, bill rate per contract
Closes one of the Path 1 trust-break gaps. The scenario we kept flagging:
recruiter calls the system's top pick, worker quotes $35/hr, contract
pays $28/hr. First broken call kills the demo. This fixes it.

Heuristic (no schema change, derived at query time):
- Per worker: implied_pay_rate = role_base + (reliability × 4) + archetype_bump
  role_base: Electrician $28, Welder $26, Machine Op $24, Maint $26,
    Forklift Op $20, Loader $17, Warehouse Assoc $17, Quality Tech $23,
    Production Worker $18 ...
  archetype bump: specialist +4, leader +3, reliable +1, else 0
- Per contract: implied_bill_rate = role_base × 1.4
  (40% markup — industry norm: pay + overhead + insurance + margin)
- Worker is 'over_bill_rate' when implied_pay_rate > contract's bill_rate
  on a candidate-by-candidate basis

Backend (mcp-server/index.ts):
- ROLE_BASE_PAY_RATE + BILL_MARKUP constants
- impliedPayRate(worker), impliedBillRate(role) functions
- parseWorkerChunk() extracts role/reliability/archetype from vector text
- enrichWithRates() attaches implied_pay_rate on every /vectors/hybrid
  source response. Called from /search and /intelligence/permit_contracts.
- /search accepts optional max_pay_rate number — if set, filters out
  workers above that rate and reports pay_rate_filtered_out count.
- /intelligence/permit_contracts returns implied_bill_rate per contract
  AND over_bill_rate boolean per candidate.

Frontend (search.html):
- Live Contracts cards show 'bill rate: $X/hr' under the headcount line
- Each candidate shows 'pay $X/hr' in the sub-line; red 'Over bill rate'
  chip next to name when their pay exceeds the contract's bill rate
  (hover reveals the exact numbers and why it's flagged)
- Main 'Search all workers' results now include 'pay $X/hr' in the
  why-text (computeImpliedPayRate mirrored client-side to match Bun)

End-to-end verified live:
- Masonry Work permit, bill_rate $25.20/hr
  Kathleen M. Gutierrez pay $25.56/hr → 🔴 OVER
  Melissa C. Rivera pay $20.88/hr → 🟢 OK
- /search with max_pay_rate:32 filtered out 1 Toledo Welder above $32
- Main search shows 'pay $28.64/hr' in each result row

When real ATS data replaces synthetic workers_500k, same UI — the
client's real pay_rate column substitutes for the heuristic.
2026-04-20 18:56:51 -05:00
2026-03-27 05:54:09 -05:00
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