Delete row 16953 from events

seq 16953
id evt_566951945d4b
kind llm_usage
ts 2026-04-10T14:20:19.964753+00:00
actor llm:openai
subject_entity_ids []
payload {"cost_usd":0.000792,"meta":{" ...
source_ref NULL
confidence 0.0
dedupe_key llm_usage:resp_0979b137e990bbe30069d9072151788196b ...
episode_id NULL
created_at 2026-04-10T14:20:19.964820+00:00
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