Delete row sig_8b456cd97fb8 from signals

id sig_8b456cd97fb8
event_id evt_6911dedc97b5
watcher_id NULL
signal_type market_headline_delta
value {"aggregator_url":"https://news.google ...
threshold NULL
direction NULL
severity NULL
window NULL
source market_ingestor
reason_trace {"_evidence_event_ids":["evt_aeee580d2 ...
dedupe_key signal_enriched:market_headline_delta:693db09154a7 ...
throttle_s 0
created_at 2026-04-06T22:29:21.351769+00:00
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