Delete row sig_4ea71611aba9 from signals

id sig_4ea71611aba9
event_id evt_8d6736057ab1
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_5a9c4a327 ...
dedupe_key signal_enriched:news_delta:164faa0fac33310f
throttle_s 0
created_at 2026-04-12T11:53:40.227829+00:00
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