event_id	int
event_timestamp	bigint
work_order_id	varchar
anomaly_type	varchar
severity	enum
title	varchar
description	text
data_json	text
kpi_snapshot_json	text
status	enum
acknowledged_at	bigint
resolved_at	bigint
auto_resolved	tinyint
cycle_count	int
occurrence_count	int
last_occurrence	bigint
notes	text