Delete row sig_b02ede008b52 from signals

id sig_b02ede008b52
event_id evt_045f08b5d47c
watcher_id NULL
signal_type technical_indicator_signal
value {"bars":600,"confidence":0.4983089 ...
threshold NULL
direction NULL
severity medium
window NULL
source technical_analyzer
reason_trace {"cutoff_iso":"2026-04-07T20:50:11Z ...
dedupe_key ta:technical_indicator_signal:priceBelowEma12:ema_ ...
throttle_s 0
created_at 2026-04-10T20:50:11.098648+00:00
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