docs: auto-update API reference from source code

Author: github-actions[bot]

wiki/API-Reference:-Sensors.md

@@ -454,6 +454,18 @@ GET.X Read-only access to timestamps (backward-compat with legacy Sensor.X).
 
 GET.Y Read-only access to values (backward-compat with legacy Sensor.Y).
 
+#### `v = get()`
+
+GET.THRESHOLDS Always empty cell array (backward-compat stub).
+  Legacy Sensor class exposed a Thresholds cell array of
+  ThresholdRule handles. In the v2.0 Tag model, thresholds
+  are expressed as MonitorTag children bound via TagRegistry
+  — not as a nested collection on the sensor. Widgets that
+  still read .Thresholds (GaugeWidget, StatusWidget) see an
+  empty cell here and fall through to their "no thresholds"
+  branch. Consumers should migrate to the TagRegistry +
+  MonitorTag workflow for threshold behaviour.
+
 #### `[X, Y] = getXY(obj)`
 
 GETXY Return X, Y by reference (zero-copy via COW).