Delete row 268603 from events

seq 268603
id evt_44107ff6c1f4
kind opportunity_tick_summary
ts 2026-04-19T03:32:34.908557+00:00
actor opportunity_daemon
subject_entity_ids []
payload {"artifacts":0,"at":"2026-04-1 ...
source_ref NULL
confidence 0.0
dedupe_key opportunity_tick_summary:otick_1a2e94b8eff0
episode_id NULL
created_at 2026-04-19T03:32:34.908565+00:00
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