{"service":"AI Car Advisor API","docs":"/docs","query_endpoint":"POST /query","health":"/health","ready":"/ready","view_flow":"/view-flow","example_body":{"query":"SUVs under ₹20L","session_id":"4d6f6f930363451796708049e2167c09","format_output":true},"auth_required":true,"auth_hint":"Send X-API-Key header or Authorization: Bearer <key> on POST /query","rate_limiting":"on","rate_limit_hint":"Per API key or IP; 429 + Retry-After when exceeded"}