09:56:08 [ERR] WebSocket connection failed: ECONNREFUSED 127.0.0.1:3001
09:56:08 [ERR] Unhandled rejection: ConnectionError at WebSocket.connect (/app/ws.js:42)
09:56:08 [ERR] Process exited with code 1 — signal: null
09:54:31 [ERR] Retry attempt 3/3 failed: WebSocket ECONNREFUSED
09:54:26 [WRN] Retry attempt 2/3: reconnecting to ws://127.0.0.1:3001...
09:54:21 [WRN] Retry attempt 1/3: reconnecting to ws://127.0.0.1:3001...
09:54:16 [ERR] WebSocket connection lost — attempting reconnect in 5s
09:52:04 [ERR] Heartbeat timeout — no response from price feed for 30s
09:51:30 [WRN] Price feed latency spike: 2847ms (threshold: 1000ms)
09:50:12 [ERR] Memory usage above 90%: 458/512 MB — triggering GC