Delete row 11820 from events

seq 11820
id evt_fab05812afc0
kind signal_ingest
ts 2026-04-04T05:44:55.751713+00:00
actor daemon:signal_enrichment
subject_entity_ids []
payload {"created_at":"2026-04-04T05:44:25.860 ...
source_ref candidate:sc_25200a38878d3e38
confidence 0.8
dedupe_key signal_enriched:news_delta:6f4bd0ecc0b4ce81
episode_id NULL
created_at 2026-04-04T05:44:55.751757+00:00
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