Delete row sig_41200f536bfc from signals

id sig_41200f536bfc
event_id evt_842076baa200
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_15f81aa27 ...
dedupe_key signal_enriched:news_delta:18ae5f7a1018b189
throttle_s 0
created_at 2026-04-17T09:00:15.478015+00:00
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