2026-08-15T14:02:55.001Z  INFO  request  POST /v2/synthesize
2026-08-15T14:02:55.004Z  DEBUG stream  websocket opened
2026-08-15T14:02:55.310Z  DEBUG stream  first chunk 306ms (expected <300ms)
2026-08-15T14:02:58.882Z  WARN  stream  chunk gap 1.9s
2026-08-15T14:03:01.004Z  INFO  response 200 stream closed, 6 chunks, 6.0s total