fix: resolve infinite loop in multi-plate autonest and wire into console

- Change while(true) to bounded for-loop (max 100 plates) in MainForm
- Use Drawing.Name comparison instead of reference equality for quantity deduction
- Add Math.Max(0, ...) guard to prevent negative quantities
- Tune SA parameters for faster convergence (cooling=0.995, minTemp=0.1, maxNoImprove=500)
- Add --autonest flag to OpenNest.Console for CLI-based NFP autonesting

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

OpenNest.Engine/SimulatedAnnealing.cs

@@ -13,9 +13,9 @@ namespace OpenNest
     /// </summary>
     public class SimulatedAnnealing : INestOptimizer
     {
-        private const double DefaultCoolingRate = 0.997;
-        private const double DefaultMinTemperature = 0.01;
-        private const int DefaultMaxNoImprovement = 2000;
+        private const double DefaultCoolingRate = 0.995;
+        private const double DefaultMinTemperature = 0.1;
+        private const int DefaultMaxNoImprovement = 500;
 
         public NestResult Optimize(List<NestItem> items, Box workArea, NfpCache cache,
             Dictionary<int, List<double>> candidateRotations,