Delete row sig_9a6846863dfd from signals

id sig_9a6846863dfd
event_id evt_92b89b085913
watcher_id NULL
signal_type discovery_ipo_delta
value {"aggregator_url":"https://news.google ...
threshold NULL
direction NULL
severity NULL
window NULL
source discovery_ingestor
reason_trace {"_evidence_event_ids":["evt_bdea105e5 ...
dedupe_key signal_enriched:discovery_ipo_delta:ac9049e1c1c761 ...
throttle_s 0
created_at 2026-04-09T03:12:49.786272+00:00
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