Delete row sig_f621c4f7936c from signals

id sig_f621c4f7936c
event_id evt_f098798f8c4c
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_a6ca32103 ...
dedupe_key signal_enriched:news_delta:0e0bb13f85dafb8a
throttle_s 0
created_at 2026-04-17T09:00:15.597113+00:00
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