Delete row 15413 from events

seq 15413
id evt_dade1887cd8d
kind signal_candidate_ingest
ts 2026-04-10T10:10:30.826152+00:00
actor collector:discovery
subject_entity_ids []
payload {"created_at":"2026-04-10T10:10:30.826 ...
source_ref rss
confidence 1.0
dedupe_key discovery_unusual_volume_delta:9e636c44cbc15105
episode_id NULL
created_at 2026-04-10T10:10:34.647530+00:00
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