Delete row sig_887248998c1f from signals

id sig_887248998c1f
event_id evt_e3332c96b335
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_635c4efc4 ...
dedupe_key signal_enriched:market_headline_delta:c151ffc745ee ...
throttle_s 0
created_at 2026-04-19T16:31:06.943627+00:00
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