Delete row sig_33de9f3d0893 from signals

id sig_33de9f3d0893
event_id evt_689d57f397c7
watcher_id NULL
signal_type discovery_sector_rotation_delta
value {"aggregator_url":"https://www.nasdaq. ...
threshold NULL
direction NULL
severity NULL
window NULL
source discovery_ingestor
reason_trace {"_evidence_event_ids":["evt_8dc153603 ...
dedupe_key signal_enriched:discovery_sector_rotation_delta:0e ...
throttle_s 0
created_at 2026-04-09T16:35:58.987693+00:00
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