Delete row sig_d1c868085775 from signals

id sig_d1c868085775
event_id evt_1cd5cfe03d16
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_225fa270a ...
dedupe_key signal_enriched:news_delta:230cc8c6c1f0b508
throttle_s 0
created_at 2026-04-20T12:01:18.847107+00:00
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