Phase 4. Mirror the vendor insurance request flow for RV/boat renters:
- Migration: insurance fields on rv_boat_lot_rentals + rv_renter_insurance_requests
table + token-scoped lookup/submit SECURITY DEFINER RPCs (granted to anon).
- Edge fn send-rv-renter-insurance-request emails the renter a secure link
(reuses the vendor-insurance-request email template).
- Public page /rv-insurance/:token to submit carrier/policy/expiration + COI upload.
- "Request Insurance" button on each active rental + insurance status display.
DB RPCs verified end-to-end (rolled-back txn): submit matches token, updates the
rental, marks the request submitted. Edge function deployed.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>