Delete row sig_db191e1b6de9 from signals

id sig_db191e1b6de9
event_id evt_e536b706dacc
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_db8dfe6fb ...
dedupe_key signal_enriched:news_delta:a97b373e1433b2ad
throttle_s 0
created_at 2026-04-18T18:42:00.713951+00:00
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