Delete row sig_1441e1cff44b from signals

id sig_1441e1cff44b
event_id evt_04e3d10b76bc
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_9dff6746e ...
dedupe_key signal_enriched:news_delta:ae575654bdd03338
throttle_s 0
created_at 2026-04-19T18:00:49.782612+00:00
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