Delete row sig_0f4f9a1539e8 from signals

id sig_0f4f9a1539e8
event_id evt_5f788252afc2
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_8fb7d91f6 ...
dedupe_key signal_enriched:news_delta:0c5d5734a9668960
throttle_s 0
created_at 2026-04-09T03:57:11.987485+00:00
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