Delete row sig_db18356f56d8 from signals

id sig_db18356f56d8
event_id evt_5bd18f93f084
watcher_id NULL
signal_type news_headline_delta
value {"aggregator_url":"https://news.google ...
threshold NULL
direction NULL
severity NULL
window NULL
source news_rss
reason_trace {"_evidence_event_ids":["evt_a118b1e40 ...
dedupe_key signal_enriched:news_delta:eab861a9cd95e433
throttle_s 0
created_at 2026-04-18T11:03:21.282074+00:00
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