Delete row 12877 from events

seq 12877
id evt_c1fa51709e30
kind signal_ingest
ts 2026-04-10T02:21:57.144631+00:00
actor daemon:signal_enrichment
subject_entity_ids []
payload {"created_at":"2026-04-09T15:06:58.940 ...
source_ref candidate:sc_f14dce9e448cea33
confidence 0.55
dedupe_key signal_enriched:discovery_ipo_delta:00ef872e5915fa ...
episode_id NULL
created_at 2026-04-10T02:21:57.144681+00:00
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