Delete row 15794 from events

seq 15794
id evt_02edb3261b93
kind llm_usage
ts 2026-04-04T18:19:44.852185+00:00
actor llm:openai
subject_entity_ids []
payload {"cost_usd":0.000501,"meta":{" ...
source_ref NULL
confidence 0.0
dedupe_key llm_usage:resp_0360629fc2f9c6000069d1563baf9c8190a ...
episode_id NULL
created_at 2026-04-04T18:19:44.852244+00:00
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