{"service":"preview-proxy","status":"healthy","registeredPreviews":53,"pendingRegistrations":10,"endpoints":["POST /register { webUrl, apiUrl, branch }","POST /register/service { branch, service, url }","GET /resolve?origin=<webUrl>","GET /mapping/:branch","GET /pending/:branch","GET /list","GET /pending","DELETE /delete?origin=<webUrl>","ALL /v1/* (proxy - uses Origin header)","GET /dashboard (management UI)","POST /webhooks/stripe (forward - uses metadata.preview_api_url)"]}