Delete row 2172 from events

seq 2172
id evt_489326c0b77d
kind signal_ingest
ts 2026-04-08T00:30:40.024143+00:00
actor daemon:signal_enrichment
subject_entity_ids []
payload {"created_at":"2026-04-07T23:23:36.093 ...
source_ref candidate:sc_fdff2bbd4e4e6523
confidence 0.72
dedupe_key signal_enriched:market_headline_delta:125f3d384e1e ...
episode_id NULL
created_at 2026-04-08T00:30:40.024178+00:00
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