Delete row 51050 from events

seq 51050
id evt_c78ae7f62778
kind llm_usage
ts 2026-04-15T22:15:23.231196+00:00
actor llm:openai
subject_entity_ids []
payload {"cost_usd":0.000531,"meta":{" ...
source_ref NULL
confidence 0.0
dedupe_key llm_usage:resp_0743ccfc4ca563b80069e00df6cba08190b ...
episode_id NULL
created_at 2026-04-15T22:15:23.231242+00:00
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