fix: unify path smoothing geometry metrics

ClumsyPilot/ParkrobTrajplanner/PathSmoothing/Processing/PathGeometryAnalysis.cs

@@ -13,6 +13,7 @@ public sealed class PathGeometryAnalysis
         IReadOnlyList<SmoothedPathSegment> segments,
         double pathLengthMeters,
         double maximumAbsoluteVehicleCurvaturePerMeter,
+        double maximumAbsoluteVehicleCurvatureDerivativePerSquareMeter,
         double rootMeanSquareVehicleCurvaturePerMeter,
         double totalAbsoluteCurvatureVariationPerMeter,
         double curvatureVariationEnergy,
@@ -22,6 +23,7 @@ public sealed class PathGeometryAnalysis
         Segments = CopyReadOnly(segments);
         PathLengthMeters = pathLengthMeters;
         MaximumAbsoluteVehicleCurvaturePerMeter = maximumAbsoluteVehicleCurvaturePerMeter;
+        MaximumAbsoluteVehicleCurvatureDerivativePerSquareMeter = maximumAbsoluteVehicleCurvatureDerivativePerSquareMeter;
         RootMeanSquareVehicleCurvaturePerMeter = rootMeanSquareVehicleCurvaturePerMeter;
         TotalAbsoluteCurvatureVariationPerMeter = totalAbsoluteCurvatureVariationPerMeter;
         CurvatureVariationEnergy = curvatureVariationEnergy;
@@ -40,15 +42,21 @@ public sealed class PathGeometryAnalysis
     /// <summary>车辆曲率绝对值峰值，单位 1/m。</summary>
     public double MaximumAbsoluteVehicleCurvaturePerMeter { get; }
 
+    /// <summary>车辆曲率导数绝对值峰值，单位 1/m²。</summary>
+    public double MaximumAbsoluteVehicleCurvatureDerivativePerSquareMeter { get; }
+
     /// <summary>车辆曲率均方根，单位 1/m。</summary>
     public double RootMeanSquareVehicleCurvaturePerMeter { get; }
 
     /// <summary>不跨换向点累计的绝对曲率变化，单位 1/m。</summary>
     public double TotalAbsoluteCurvatureVariationPerMeter { get; }
 
-    /// <summary>不跨换向点累计的曲率变化能量。</summary>
+    /// <summary>不跨换向点累计的曲率变化代价。</summary>
     public double CurvatureVariationEnergy { get; }
 
+    /// <summary>曲率变化代价的面向用户名称；保留 <see cref="CurvatureVariationEnergy"/> 以兼容既有调用方。</summary>
+    public double CurvatureVariationCost => CurvatureVariationEnergy;
+
     /// <summary>输入点携带的最小保守净空，单位 m。</summary>
     public double MinimumBodyClearanceMeters { get; }