Delete row 474693 from events

seq 474693
id evt_7febc93e6c90
kind agent_run_ticked
ts 2026-04-21T22:45:09.263274+00:00
actor agent_mgr
subject_entity_ids []
payload {"agent_run_id":"agr_c96cdffe0fff" ...
source_ref NULL
confidence 0.0
dedupe_key agent_run_ticked:agr_c96cdffe0fff:2026-04-21T22:45 ...
episode_id NULL
created_at 2026-04-21T22:45:09.263283+00:00
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