增加射线源探测器Z轴锁定联动功能，增加对应plc信号和配置。

XP.Hardware.MotionControl/Config/MotionControlConfig.cs

@@ -23,6 +23,24 @@ namespace XP.Hardware.MotionControl.Config
 
         /// <summary>默认速度| Default velocity</summary>
         public int DefaultVelocity { get; set; } = 100;
+
+        /// <summary>射线源与探测器Z轴联动配置 | Source-Detector Z-axis linkage configuration</summary>
+        public SourceDetectorZLinkageConfig SourceDetectorZLinkage { get; set; } = new();
+    }
+
+    /// <summary>
+    /// 射线源与探测器Z轴联动配置 | Source-Detector Z-axis linkage configuration
+    /// </summary>
+    public class SourceDetectorZLinkageConfig
+    {
+        /// <summary>联动启用 | Linkage enabled</summary>
+        public bool Enabled { get; set; } = false;
+
+        /// <summary>联动触发的位置变化阈值（mm）| Position change threshold for linkage trigger (mm)</summary>
+        public double TriggerThreshold { get; set; } = 1.0;
+
+        /// <summary>联动移动速度百分比（0-100）| Linkage movement speed percentage (0-100)</summary>
+        public int SpeedPercent { get; set; } = 100;
     }
 
     /// <summary>