chore: Remove unused using statements

Cleanup of unnecessary imports across the codebase.

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

CutList.Core/BestCombination.cs

@@ -1,6 +1,4 @@
-using System;
-
-namespace CutList.Core
+namespace CutList.Core
 {
     public static class BestCombination
     {

CutList.Core/BinComparer.cs

@@ -1,7 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-
 namespace CutList.Core
 {
     /// <summary>

CutList.Core/BinGroup.cs

@@ -1,7 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-
 namespace CutList.Core
 {
     /// <summary>

CutList.Core/MultiBin.cs

@@ -1,6 +1,4 @@
-using System;
-
-namespace CutList.Core
+namespace CutList.Core
 {
     /// <summary>
     /// Represents a type of bin with quantity and priority.

CutList.Core/Nesting/AdvancedFitEngine.cs

@@ -1,9 +1,4 @@
-using CutList.Core.Nesting;
-using CutList.Core;
-using System;
-using System.Collections.Generic;
-using System.Data;
-using System.Linq;
+using System.Data;
 
 namespace CutList.Core.Nesting
 {

CutList.Core/Nesting/BestFitEngine.cs

@@ -1,7 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Data;
-using System.Linq;
+using System.Data;
 
 namespace CutList.Core.Nesting
 {

CutList.Core/Nesting/IEngine.cs

@@ -1,6 +1,4 @@
-using System.Collections.Generic;
-
-namespace CutList.Core.Nesting
+namespace CutList.Core.Nesting
 {
     public interface IEngine
     {

CutList.Core/Nesting/MultiBinEngine.cs

@@ -1,8 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-
-namespace CutList.Core.Nesting
+namespace CutList.Core.Nesting
 {
     public class MultiBinEngine : IEngine
     {

CutList.Core/Nesting/Result.cs

@@ -1,6 +1,4 @@
-using System.Collections.Generic;
-
-namespace CutList.Core.Nesting
+namespace CutList.Core.Nesting
 {
     public class Result
     {

CutList.Core/Tolerance.cs

@@ -1,6 +1,4 @@
-using System;
-
-namespace CutList.Core
+namespace CutList.Core
 {
     public static class Tolerance
     {

CutList/Common/Result.cs

@@ -1,5 +1,3 @@
-using System;
-
 namespace CutList.Common
 {
     /// <summary>

CutList/Controls/BinLayoutView.cs

@@ -1,8 +1,5 @@
 using CutList.Core;
-using System;
-using System.Drawing;
 using System.Drawing.Drawing2D;
-using System.Windows.Forms;
 
 namespace CutList.Controls
 {

CutList/Forms/DataGridViewExtensions.cs

@@ -1,7 +1,4 @@
-using System.Drawing;
-using System.Windows.Forms;
-
-namespace CutList.Forms
+namespace CutList.Forms
 {
     public static class DataGridViewExtensions
     {

CutList/Forms/MainForm.cs

@@ -1,14 +1,8 @@
-using CutList.Models;
+using CutList.Core;
+using CutList.Models;
 using CutList.Presenters;
 using CutList.Services;
-using CutList.Core;
-using System;
-using System.Collections.Generic;
 using System.ComponentModel;
-using System.Drawing;
-using System.Linq;
-using System.Windows.Forms;
-using static System.Windows.Forms.VisualStyles.VisualStyleElement;
 
 namespace CutList.Forms
 {

CutList/Presenters/IMainView.cs

@@ -1,6 +1,5 @@
-using CutList.Models;
 using CutList.Core;
-using System.Collections.Generic;
+using CutList.Models;
 
 namespace CutList.Presenters
 {

CutList/Program.cs

@@ -1,7 +1,4 @@
-using System;
-using System.Windows.Forms;
-
-namespace CutList
+namespace CutList
 {
     internal static class Program
     {

CutList/Services/CutListService.cs

@@ -1,9 +1,7 @@
 using CutList.Common;
-using CutList.Models;
 using CutList.Core;
 using CutList.Core.Nesting;
-using System;
-using System.Collections.Generic;
+using CutList.Models;
 
 namespace CutList.Services
 {

CutList/Tool.cs

@@ -1,6 +1,4 @@
-using System;
-
-namespace CutList
+namespace CutList
 {
     /// <summary>
     /// Represents a cutting tool with its kerf (blade width).