Delete row sig_1ad852809582 from signals

id sig_1ad852809582
event_id evt_ab19cb921d1f
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_69f81a93f ...
dedupe_key signal_enriched:news_delta:d2c325a8aa1c3694
throttle_s 0
created_at 2026-04-06T15:00:06.887606+00:00
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