feat: Add cut method and material shape to saved reports

Include cutting tool name and material shape in the text report output.
This provides better context when reviewing saved cut lists.

Changes:
- BinFileSaver: Add CutMethod and MaterialShape properties
- ResultsForm: Pass cut method and material to file saver
- IMainView: Extend ShowResults with additional parameters
- MainFormPresenter: Use document name for save filename if available

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CutList.Core/BinFileSaver.cs

@@ -11,6 +11,16 @@ namespace CutList.Core
 
         public bool OpenFileAfterSave { get; set; }
 
+        /// <summary>
+        /// The cutting method/tool used (e.g., "Miter Saw", "Table Saw").
+        /// </summary>
+        public string? CutMethod { get; set; }
+
+        /// <summary>
+        /// The material shape (e.g., "Round Tube", "Square Tube", "Flat Bar").
+        /// </summary>
+        public string? MaterialShape { get; set; }
+
         public BinFileSaver(IEnumerable<Bin> bins)
         {
             _bins = bins ?? throw new ArgumentNullException(nameof(bins));
@@ -74,10 +84,24 @@ namespace CutList.Core
             var totalItems = _bins.Sum(b => b.Items.Count);
 
             writer.WriteLine("CUT LIST");
-            writer.WriteLine($"Date: {DateTime.Now:g}");
-            writer.WriteLine($"Total stock bars needed: {totalBars}");
-            writer.WriteLine($"Total pieces to cut: {totalItems}");
+            WriteSeparator(writer, '=');
             writer.WriteLine();
+            WriteAlignedLine(writer, "Date", DateTime.Now.ToString("g"));
+
+            if (!string.IsNullOrEmpty(CutMethod))
+                WriteAlignedLine(writer, "Cut Method", CutMethod);
+
+            if (!string.IsNullOrEmpty(MaterialShape))
+                WriteAlignedLine(writer, "Material", MaterialShape);
+
+            WriteAlignedLine(writer, "Stock Bars Needed", totalBars.ToString());
+            WriteAlignedLine(writer, "Total Pieces", totalItems.ToString());
+            writer.WriteLine();
+        }
+
+        private static void WriteAlignedLine(TextWriter writer, string label, string value, int labelWidth = 20)
+        {
+            writer.WriteLine($"  {label.PadRight(labelWidth)} {value}");
         }
 
         private void WriteBinSummary(TextWriter writer, Bin bin, int id)
@@ -85,8 +109,9 @@ namespace CutList.Core
             var stockLength = FormatHelper.ConvertToMixedFraction(bin.Length);
             var dropLength = FormatHelper.ConvertToMixedFraction(bin.RemainingLength);
 
-            writer.WriteLine(new string('─', 50));
-            writer.WriteLine($"BAR #{id}  -  Start with {stockLength}\" stock");
+            WriteSeparator(writer);
+
+            writer.WriteLine($"BAR #{id}  -  Length: {stockLength}\"");
             writer.WriteLine();
             writer.WriteLine("  Cut these pieces:");
 
@@ -97,6 +122,11 @@ namespace CutList.Core
             writer.WriteLine();
         }
 
+        private static void WriteSeparator(TextWriter writer, char c = '─', int length = 50)
+        {
+            writer.WriteLine(new string(c, length));
+        }
+
         private void WriteBinItems(TextWriter writer, Bin bin)
         {
             var groups = bin.Items
@@ -128,14 +158,14 @@ namespace CutList.Core
 
             string fmt(double v) => FormatHelper.ConvertToMixedFraction(v);
 
-            writer.WriteLine(new string('═', 50));
+            WriteSeparator(writer, '=');
             writer.WriteLine("SUMMARY");
-            writer.WriteLine($"  Stock bars needed: {totalBars}");
-            writer.WriteLine($"  Total pieces to cut: {totalItems}");
-            writer.WriteLine($"  Total material used: {fmt(totalStock)}\"");
-            writer.WriteLine($"  Total drop/waste: {fmt(totalDrop)}\"");
-            writer.WriteLine(new string('═', 50));
+            writer.WriteLine();
+            WriteAlignedLine(writer, "Stock Bars Needed", totalBars.ToString());
+            WriteAlignedLine(writer, "Total Pieces", totalItems.ToString());
+            WriteAlignedLine(writer, "Total Material Used", $"{fmt(totalStock)}\"");
+            WriteAlignedLine(writer, "Total Drop/Waste", $"{fmt(totalDrop)}\"");
+            WriteSeparator(writer, '=');
         }
-
     }
 }