Delete row sig_a12fd18a0e3f from signals

id sig_a12fd18a0e3f
event_id evt_02b19f94c913
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_4e4527c26 ...
dedupe_key signal_enriched:news_delta:a6f05d2e16ae9140
throttle_s 0
created_at 2026-04-18T10:17:56.044753+00:00
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