Delete row sig_e4789c98c6a8 from signals

id sig_e4789c98c6a8
event_id evt_bd6b6245a779
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_9b44f6086 ...
dedupe_key signal_enriched:news_delta:8afee72e0ece6215
throttle_s 0
created_at 2026-04-07T23:23:38.982556+00:00
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