Delete row 140963 from events

seq 140963
id evt_98e25112c33d
kind signal_ingest
ts 2026-04-18T05:19:05.198913+00:00
actor collector:opportunity_research
subject_entity_ids []
payload {"created_at":"2026-04-18T05:19:05.198 ...
source_ref web_search:serper
confidence 0.6
dedupe_key opportunity_research_snapshot:83f6fbbe99da4a23
episode_id NULL
created_at 2026-04-18T05:19:06.652150+00:00
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