Delete row 22953 from events

seq 22953
id evt_704960503efb
kind signal_candidate_ingest
ts 2026-04-11T12:09:00.615097+00:00
actor collector:discovery
subject_entity_ids []
payload {"created_at":"2026-04-11T12:09:00.615 ...
source_ref rss
confidence 1.0
dedupe_key discovery_unusual_volume_delta:dc86a3866171648a
episode_id NULL
created_at 2026-04-11T12:09:03.415556+00:00
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