Delete row 31159 from events

seq 31159
id evt_e725262da824
kind signal_ingest
ts 2026-04-12T22:34:24.105887+00:00
actor daemon:signal_enrichment
subject_entity_ids []
payload {"created_at":"2026-04-12T20:02:46.507 ...
source_ref candidate:sc_7b1a6fdfc1ab44e2
confidence 0.55
dedupe_key signal_enriched:market_headline_delta:57cbb0dff49e ...
episode_id NULL
created_at 2026-04-12T22:34:24.105946+00:00
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