{"service":"Contract Assistant API","status":"Backend is running","version":"4.0 — RAG + LLM Orchestrator + Escalation + Bot Framework + WebSockets","knowledge_base":{"total_chunks":534,"status":"ready"},"active_sessions":0,"endpoints":{"health":"/health","diagnostics":"/test-teams","chat":"POST /chat","escalate":"POST /escalate","upload_exhibit":"POST /documents/upload","delete_exhibit":"DELETE /documents/delete","upload_faq":"POST /documents/faq/upload","delete_faq":"DELETE /documents/faq/delete","doc_status":"GET /documents/status","doc_list":"GET /documents/list","blob_status":"GET /documents/blob-status","sharepoint_verify":"POST /sharepoint/verify-link","sharepoint_trigger_exhibit":"POST /sharepoint/trigger-sync","sharepoint_trigger_faq":"POST /sharepoint/trigger-sync-faq","sharepoint_status":"GET /sharepoint/sync-status","active_sessions":"GET /active-sessions","ws_user":"/ws/user/{session_id}","ws_agent":"/ws/agent/{session_id}"}}