Delete row sig_c7addb23e2a6 from signals

id sig_c7addb23e2a6
event_id evt_b84de7dfaff5
watcher_id NULL
signal_type technical_indicator_signal
value {"bars":112,"confidence":0.6352879 ...
threshold NULL
direction NULL
severity medium
window NULL
source technical_analyzer
reason_trace {"cutoff_iso":"2026-04-14T20:09:12Z ...
dedupe_key ta:technical_indicator_signal:emaCrossUp:ema_signa ...
throttle_s 0
created_at 2026-04-17T20:09:12.578310+00:00
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