Delete row sig_1c2bd49aa1b9 from signals

id sig_1c2bd49aa1b9
event_id evt_21802bc87c91
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_07d7d2cd8 ...
dedupe_key signal_enriched:news_delta:8ec228c19a5d2faf
throttle_s 0
created_at 2026-04-08T20:43:08.204273+00:00
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