Delete row sig_179ea882d899 from signals

id sig_179ea882d899
event_id evt_18873ec1d306
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_655460022 ...
dedupe_key signal_enriched:news_delta:86a765051d95cc70
throttle_s 0
created_at 2026-04-21T01:31:11.879592+00:00
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