Delete row sig_dab3c4f25312 from signals

id sig_dab3c4f25312
event_id evt_31a4a02084ca
watcher_id NULL
signal_type discovery_options_flow_snapshot
value {"as_of":"2026-04-22T02:02:59.136208+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source discovery_rss
reason_trace {}
dedupe_key discovery_options_flow_snapshot:7bfa1ffff234fb94
throttle_s 0
created_at 2026-04-22T02:02:59.136208+00:00
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