Surface per-zone thresholds on Vercel frontend

Frontend: clarify threshold labels (city-wide default vs production per-zone)

Frontend: use burn analysis values from DB, drop old neural pricing formulas

Coverage polish + DPI-style worker pilot with Disbursements drill-down

Filter UI to single-city Dar pilot + MECE Coverage restructure

Remove hardcoded fallbacks from frontend API endpoints

Harden serverless DB checks, CORS, cursor lifecycle, and healing JSON parse

Disbursements: zone-level summaries, wired to live data, fix coverage 500

Coverage: single P97 threshold, annual costs, informal workers first

Disbursements page: M-Pesa payouts replace Alerts

Payout triggers at zone P99 WBGT (~3-4x/year, matching SEWA design)

Coverage filters: Who (all/women/men) × Where (all/informal/mixed/formal)

Coverage page: weekly per-worker costs, payout/safe badges, drop fake totals

Add scenario toggle: all workers vs women in informal settlements

Coverage page: funding decomposition, two-tier payouts, fix payout display

Write neural trigger_prob + pricing to predictions table

Fix serverless API: correct column names, filter test zones, handle nulls

Add Vercel serverless API routes reading from Neon (same as Weather AI 2)