Delete row 482085 from events

seq 482085
id evt_21abeae7afac
kind signal_ingest
ts 2026-04-22T14:16:32.837880+00:00
actor daemon:signal_enrichment
subject_entity_ids []
payload {"created_at":"2026-04-22T14:13:37.135 ...
source_ref candidate:sc_aa85c106474991ef
confidence 0.6
dedupe_key signal_enriched:discovery_unusual_volume_delta:10d ...
episode_id NULL
created_at 2026-04-22T14:16:32.837951+00:00
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