Delete row 6021 from events

seq 6021
id evt_3d45ec111676
kind signal_ingest
ts 2026-04-08T10:49:17.537923+00:00
actor daemon:signal_enrichment
subject_entity_ids []
payload {"created_at":"2026-04-08T10:48:43.557 ...
source_ref candidate:sc_fa2442edc15ecea9
confidence 0.74
dedupe_key signal_enriched:market_headline_delta:d06eaa336e3a ...
episode_id NULL
created_at 2026-04-08T10:49:17.537988+00:00
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