Delete row 479061 from events

seq 479061
id evt_77d2b7912793
kind signal_ingest
ts 2026-04-22T04:26:35.895864+00:00
actor daemon:signal_enrichment
subject_entity_ids []
payload {"created_at":"2026-04-22T04:26:15.703 ...
source_ref candidate:sc_925180599a8145ed
confidence 0.42
dedupe_key signal_enriched:news_delta:8e46714777645f44
episode_id NULL
created_at 2026-04-22T04:26:35.895920+00:00
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