Delete row 28304 from events

seq 28304
id evt_00e56a7bc1b2
kind signal_ingest
ts 2026-04-06T07:13:07.566502+00:00
actor daemon:signal_enrichment
subject_entity_ids []
payload {"created_at":"2026-04-06T07:12:24.594 ...
source_ref candidate:sc_48387c115c754c5f
confidence 0.9
dedupe_key signal_enriched:news_delta:7978880396f4fb8b
episode_id NULL
created_at 2026-04-06T07:13:07.566547+00:00
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