Delete row sig_5ecb3b006753 from signals

id sig_5ecb3b006753
event_id evt_66f13f385ad7
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_8c6f0cc37 ...
dedupe_key signal_enriched:news_delta:c6dc0381b6608337
throttle_s 0
created_at 2026-04-08T03:31:26.688462+00:00
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