Delete row 2147 from events

seq 2147
id evt_cc37a55d5aef
kind signal_ingest
ts 2026-04-08T00:29:34.003500+00:00
actor daemon:signal_enrichment
subject_entity_ids []
payload {"created_at":"2026-04-07T23:23:36.060 ...
source_ref candidate:sc_dad8e2fa739d8ce4
confidence 0.78
dedupe_key signal_enriched:market_headline_delta:5b87adeec759 ...
episode_id NULL
created_at 2026-04-08T00:29:34.003546+00:00
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