Delete row sig_83f1576cf39c from signals

id sig_83f1576cf39c
event_id evt_206b39b1225d
watcher_id NULL
signal_type technical_indicator_signal
value {"bars":600,"confidence":0.4909443 ...
threshold NULL
direction NULL
severity medium
window NULL
source technical_analyzer
reason_trace {"cutoff_iso":"2026-04-05T20:40:08Z ...
dedupe_key ta:technical_indicator_signal:priceAboveEma12:ema_ ...
throttle_s 0
created_at 2026-04-08T20:40:08.728332+00:00
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