feat: add Tab hierarchy (4 classes)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

OpenNest.Core/CNC/CuttingStrategy/Tabs/BreakerTab.cs

@@ -0,0 +1,34 @@
+using System.Collections.Generic;
+using OpenNest.Geometry;
+
+namespace OpenNest.CNC.CuttingStrategy
+{
+    public class BreakerTab : Tab
+    {
+        public double BreakerDepth { get; set; }
+        public double BreakerLeadInLength { get; set; }
+        public double BreakerAngle { get; set; }
+
+        public override List<ICode> Generate(
+            Vector tabStartPoint, Vector tabEndPoint, double contourNormalAngle,
+            RotationType winding = RotationType.CW)
+        {
+            var codes = new List<ICode>();
+
+            if (TabLeadOut != null)
+                codes.AddRange(TabLeadOut.Generate(tabStartPoint, contourNormalAngle, winding));
+
+            var scoreAngle = contourNormalAngle + System.Math.PI;
+            var scoreEnd = new Vector(
+                tabStartPoint.X + BreakerDepth * System.Math.Cos(scoreAngle),
+                tabStartPoint.Y + BreakerDepth * System.Math.Sin(scoreAngle));
+            codes.Add(new LinearMove(scoreEnd));
+            codes.Add(new RapidMove(tabEndPoint));
+
+            if (TabLeadIn != null)
+                codes.AddRange(TabLeadIn.Generate(tabEndPoint, contourNormalAngle, winding));
+
+            return codes;
+        }
+    }
+}

OpenNest.Core/CNC/CuttingStrategy/Tabs/MachineTab.cs

@@ -0,0 +1,20 @@
+using System.Collections.Generic;
+using OpenNest.Geometry;
+
+namespace OpenNest.CNC.CuttingStrategy
+{
+    public class MachineTab : Tab
+    {
+        public int MachineTabId { get; set; }
+
+        public override List<ICode> Generate(
+            Vector tabStartPoint, Vector tabEndPoint, double contourNormalAngle,
+            RotationType winding = RotationType.CW)
+        {
+            return new List<ICode>
+            {
+                new RapidMove(tabEndPoint)
+            };
+        }
+    }
+}

OpenNest.Core/CNC/CuttingStrategy/Tabs/NormalTab.cs

@@ -0,0 +1,36 @@
+using System.Collections.Generic;
+using OpenNest.Geometry;
+
+namespace OpenNest.CNC.CuttingStrategy
+{
+    public class NormalTab : Tab
+    {
+        public double CutoutMinWidth { get; set; }
+        public double CutoutMinHeight { get; set; }
+        public double CutoutMaxWidth { get; set; }
+        public double CutoutMaxHeight { get; set; }
+
+        public override List<ICode> Generate(
+            Vector tabStartPoint, Vector tabEndPoint, double contourNormalAngle,
+            RotationType winding = RotationType.CW)
+        {
+            var codes = new List<ICode>();
+
+            if (TabLeadOut != null)
+                codes.AddRange(TabLeadOut.Generate(tabStartPoint, contourNormalAngle, winding));
+
+            codes.Add(new RapidMove(tabEndPoint));
+
+            if (TabLeadIn != null)
+                codes.AddRange(TabLeadIn.Generate(tabEndPoint, contourNormalAngle, winding));
+
+            return codes;
+        }
+
+        public bool AppliesToCutout(double cutoutWidth, double cutoutHeight)
+        {
+            return cutoutWidth >= CutoutMinWidth && cutoutWidth <= CutoutMaxWidth
+                && cutoutHeight >= CutoutMinHeight && cutoutHeight <= CutoutMaxHeight;
+        }
+    }
+}

OpenNest.Core/CNC/CuttingStrategy/Tabs/Tab.cs

@@ -0,0 +1,16 @@
+using System.Collections.Generic;
+using OpenNest.Geometry;
+
+namespace OpenNest.CNC.CuttingStrategy
+{
+    public abstract class Tab
+    {
+        public double Size { get; set; } = 0.03;
+        public LeadIn TabLeadIn { get; set; }
+        public LeadOut TabLeadOut { get; set; }
+
+        public abstract List<ICode> Generate(
+            Vector tabStartPoint, Vector tabEndPoint, double contourNormalAngle,
+            RotationType winding = RotationType.CW);
+    }
+}