Delete row sig_38c51f42d133 from signals

id sig_38c51f42d133
event_id evt_7c4768e91252
watcher_id NULL
signal_type system_distress
value {"alerts":[{"level":"critical& ...
threshold NULL
direction NULL
severity high
window NULL
source observability
reason_trace {}
dedupe_key observability_alert:2026-04-17T07
throttle_s 0
created_at 2026-04-17T07:02:15.326058+00:00
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