Delete row sig_297383b71f47 from signals

id sig_297383b71f47
event_id evt_9558f8c7a6f0
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_ff21d7387 ...
dedupe_key signal_enriched:news_delta:d9088b702e6b6c8c
throttle_s 0
created_at 2026-04-20T08:28:25.630371+00:00
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