The edge node now spools and retries uploads for up to 72h. #301: when a call's started_at is more than late_upload_anchor_minutes behind the real clock, extraction+correlation run under clock.pin(started_at) (the replay mechanism), so recency gates and every timestamp written are on the call's timeline. On-time uploads are unchanged. Also applies to /calls/{id}/reprocess, which shares _run_intelligence_pipeline. #302: an upload for a call_id whose audio is already stored returns the stored URL without rewriting GCS or re-running Whisper/extraction/ correlation. Not atomic: two concurrent retries can both pass the check. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>