{"message":"Charts Connect Chat API","version":"0.2.0","modes":{"presale":"Sales-focused agent for prospects (no escalation)","normal":"Support-focused agent for customers (with escalation)"},"endpoints":{"POST /presale/session_start":"Start pre-sale session for non-logged-in users","POST /presale/chat":"Send message in pre-sale mode","POST /normal/session_start":"Start normal session for logged-in users","POST /normal/chat":"Send message in normal mode","GET /health":"Health check","GET /docs":"Interactive API documentation"}}