feat(focas): add cnc_getfigure per-axis position-figure client binding

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS/Wire/WireFocasClient.cs

@@ -284,6 +284,18 @@ public sealed class WireFocasClient : IFocasClient
     public Task<IReadOnlyList<int>> GetSpindleMaxRpmsAsync(CancellationToken cancellationToken) =>
         ReadSpindleMetricAsync((sel, ct) => _wire.ReadSpindleMaxRpmAsync(sel, ct), cancellationToken);
 
+    /// <summary>Gets the per-axis position decimal-place figures via <c>cnc_getfigure</c>.</summary>
+    /// <param name="cancellationToken">Cancellation token for the operation.</param>
+    /// <returns>
+    ///     An empty list — the managed FOCAS/2 Ethernet wire client (<see cref="FocasWireClient"/>)
+    ///     does not currently expose the <c>cnc_getfigure</c> command, so this backend reports no
+    ///     per-axis figures. Per the <see cref="IFocasClient.GetPositionFiguresAsync"/> contract an
+    ///     empty list signals the driver to fall back to the configured <c>PositionDecimalPlaces</c>.
+    ///     Never throws — figure reads degrade to the config knob rather than faulting.
+    /// </returns>
+    public Task<IReadOnlyList<int>> GetPositionFiguresAsync(CancellationToken cancellationToken) =>
+        Task.FromResult<IReadOnlyList<int>>(Array.Empty<int>());
+
     private static async Task<IReadOnlyList<int>> ReadSpindleMetricAsync(
         Func<short, CancellationToken, Task<FocasResult<IReadOnlyList<WireSpindleMetric>>>> call,
         CancellationToken cancellationToken)