Delete row sig_6483dc33efc4 from signals

id sig_6483dc33efc4
event_id evt_c7b601487f6a
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_8c1cb127c ...
dedupe_key signal_enriched:news_delta:aa9341719aa92224
throttle_s 0
created_at 2026-04-08T05:34:37.358546+00:00
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