Nitro auto-import doesn't reliably pick up named exports from db/voiceQuota.ts at runtime — speak endpoint threw 500 with "ReferenceError: getRemainingVoiceQuota is not defined". Explicit imports for getRemainingVoiceQuota, consumeVoiceQuota, estimateAudioSeconds + getPlanLimits. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>