Delete row 480168 from events

seq 480168
id evt_cf1266eb011d
kind signal_ingest
ts 2026-04-22T09:29:42.284804+00:00
actor daemon:signal_enrichment
subject_entity_ids []
payload {"created_at":"2026-04-22T09:29:19.635 ...
source_ref candidate:sc_2bb8cec8521ab8fa
confidence 0.42
dedupe_key signal_enriched:news_delta:062880e56f054bd7
episode_id NULL
created_at 2026-04-22T09:29:42.284854+00:00
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