The `/v1/openai/{chat,audio}` handlers used to be silent past
`hono/logger`'s `<-- POST` / `--> 502` lines — no userId, no model,
no token counts, no flux billed. Operators looking at a real gateway
incident had to cross-reference traces, request-log rows, and billing
ledger entries by timestamp alone. For a gateway whose value is
auditable per-request metering, that's not enough.
Hoists `requestId = nanoid()` to handler entry so the same
correlation id flows through:
- the inbound log line (model / stream / messageCount or inputChars
for TTS)
- the per-stream / non-streaming delivered log (status / durationMs /
promptTokens / completionTokens / fluxConsumed)
- the upstream-error degraded path (warn level)
- the partial-debit and debit-failure paths (already used requestId)
- `billingService.consumeFluxForLLM` / `ttsMeter.accumulate` for
DB-level idempotency (replaces the previous local nanoid() calls)
handleListVoices gets a `debug`-level line — the route is high-
frequency from UI voice pickers and we don't want it in the regular
audit feed, but it's useful when chasing voice-picker drift bugs.
No new schemas, no metric emission changes; this is purely logger
output. Pairs with the cause-propagation change so errors carry the
upstream snippet AND the request can be traced end-to-end by id.
RainbowBird
1a9db35b30