Delete row 15170 from events

seq 15170
id evt_c27b8942bd93
kind llm_usage
ts 2026-04-10T09:12:37.121972+00:00
actor llm:openai
subject_entity_ids []
payload {"cost_usd":0.000538,"meta":{" ...
source_ref NULL
confidence 0.0
dedupe_key llm_usage:resp_0a67db4bf5aa0c4f0069d8bf02187881959 ...
episode_id NULL
created_at 2026-04-10T09:12:37.122020+00:00
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