Delete row 50402 from events

seq 50402
id evt_264f2c387301
kind signal_emitted
ts 2026-04-15T20:34:12.887389+00:00
actor technical_analyzer
subject_entity_ids []
payload {"created_at":"2026-04-15T20:34:12.887 ...
source_ref NULL
confidence 0.49083877633137746
dedupe_key ta:technical_indicator_signal:priceBelowEma12:ema_ ...
episode_id NULL
created_at 2026-04-15T20:35:02.258342+00:00
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