Delete row 42426 from events

seq 42426
id evt_ff5caa096162
kind signal_ingest
ts 2026-04-14T12:39:23.598397+00:00
actor daemon:signal_enrichment
subject_entity_ids []
payload {"created_at":"2026-04-14T12:37:44.483 ...
source_ref candidate:sc_9b092e019b29d93f
confidence 0.6
dedupe_key signal_enriched:news_delta:8651326e8405e1a3
episode_id NULL
created_at 2026-04-14T12:39:23.598490+00:00
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