Delete row 479974 from events

seq 479974
id evt_1bff2a9cdc45
kind signal_candidate_ingest
ts 2026-04-22T09:08:08.862046+00:00
actor collector:discovery
subject_entity_ids []
payload {"created_at":"2026-04-22T09:08:08.862 ...
source_ref rss
confidence 1.0
dedupe_key discovery_unusual_volume_delta:7d9fd9d7d9606640
episode_id NULL
created_at 2026-04-22T09:08:13.766137+00:00
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