Delete row sig_2cb1552d7384 from signals

id sig_2cb1552d7384
event_id evt_9f1cf2a083ed
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_ebd472223 ...
dedupe_key signal_enriched:news_delta:0926acc6052f1a8a
throttle_s 0
created_at 2026-04-19T17:09:55.666029+00:00
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