Delete row 20663 from events

seq 20663
id evt_3620804eb86d
kind signal_ingest
ts 2026-04-11T01:19:20.319733+00:00
actor daemon:signal_enrichment
subject_entity_ids []
payload {"created_at":"2026-04-11T00:11:50.548 ...
source_ref candidate:sc_c1503bf6bc7023db
confidence 0.78
dedupe_key signal_enriched:discovery_earnings_calendar_delta: ...
episode_id NULL
created_at 2026-04-11T01:19:20.319795+00:00
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