Delete row 479401 from events

seq 479401
id evt_2a3a90427da5
kind signal_ingest
ts 2026-04-22T06:07:51.318042+00:00
actor daemon:signal_enrichment
subject_entity_ids []
payload {"created_at":"2026-04-22T06:06:10.858 ...
source_ref candidate:sc_4400e643178bdbb3
confidence 0.42
dedupe_key signal_enriched:discovery_sector_rotation_delta:d7 ...
episode_id NULL
created_at 2026-04-22T06:07:51.318119+00:00
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