Add QRValidation project to repository

- Added QRValidation vision control system
- Includes CapCleaningControl UI components
- WebSocket-based barcode validation system
- Support for Crevis PLC integration
- Test projects for PLC emulator, motion, IO panel, and Modbus

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

QRValidation/Project/Program.cs

@@ -0,0 +1,127 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Windows.Forms;
+using System.Reflection;
+using System.Runtime.InteropServices;
+using System.Resources;
+using System.Threading;
+using System.Diagnostics;
+
+namespace Project
+{
+    static class Program
+    {
+        /// <summary>
+        /// The main entry point for the application.
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+           
+            Application.EnableVisualStyles();
+            Application.SetCompatibleTextRenderingDefault(false);
+            Application.ThreadException += new System.Threading.ThreadExceptionEventHandler(Application_ThreadException);
+            AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
+            if (CheckSingleInstance() == false) return;
+            PUB.initCore();
+            Application.Run(new fMain());
+        }
+      
+        static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
+        {
+            string emsg = "Fatal Error(UHE)\n\n" + e.ExceptionObject.ToString();
+            PUB.log_[0].AddE(emsg);
+            PUB.log_[0].Flush();
+            PUB.log_[1].AddE(emsg);
+            PUB.log_[1].Flush();
+            Util.SaveBugReport(emsg);
+            Shutdown();
+            var f = new fErrorException(emsg);
+            f.ShowDialog();
+            Application.ExitThread();
+        }
+
+        /// <summary>
+        /// Check for duplicate execution prevention
+        /// </summary>
+        /// <returns>true if single instance, false if duplicate execution</returns>
+        static bool CheckSingleInstance()
+        {
+            string processName = Process.GetCurrentProcess().ProcessName;
+            Process[] processes = Process.GetProcessesByName(processName);
+
+            if (processes.Length > 1)
+            {
+                // 중복실행 감지
+                string message = $"⚠️ {Application.ProductName} program is already running!\n\n" +
+                                "Cannot run multiple programs simultaneously.\n\n" +
+                                "Please select a solution:";
+
+                var result = MessageBox.Show(message + "\n\nYes(Y): Terminate existing program and start new\nNo(N): Cancel current execution",
+                                           "Duplicate Execution Detected",
+                                           MessageBoxButtons.YesNo,
+                                           MessageBoxIcon.Warning);
+
+                if (result == DialogResult.Yes)
+                {
+                    // 기존 프로세스들을 종료
+                    try
+                    {
+                        int currentProcessId = Process.GetCurrentProcess().Id;
+                        foreach (Process process in processes)
+                        {
+                            if (process.Id != currentProcessId)
+                            {
+                                process.Kill();
+                                process.WaitForExit(3000); // 3초 대기
+                            }
+                        }
+
+                        // 잠시 대기 후 계속 진행
+                        Thread.Sleep(1000);
+                        return true;
+                    }
+                    catch (Exception ex)
+                    {
+                        MessageBox.Show($"An error occurred while terminating the existing program:\n{ex.Message}\n\n" +
+                                       "Please terminate manually in Task Manager.",
+                                       "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                        return false;
+                    }
+                }
+                else
+                {
+                    // 현재 실행을 취소
+                    return false;
+                }
+            }
+
+            return true; // 단일 인스턴스
+        }
+
+
+
+        static void Shutdown()
+        {
+            PUB.log_[0].Add("Program Close");
+            PUB.log_[0].Flush();
+            PUB.log_[1].Add("Program Close");
+            PUB.log_[1].Flush();
+        }
+
+        static void Application_ThreadException(object sender, System.Threading.ThreadExceptionEventArgs e)
+        {
+            string emsg = "Fatal Error(ATE)\n\n" + e.Exception.ToString();
+            PUB.log_[0].AddE(emsg);
+            PUB.log_[0].Flush();
+            PUB.log_[1].AddE(emsg);
+            PUB.log_[1].Flush();
+            AR.UTIL.SaveBugReport(emsg);
+            Shutdown();
+            var f = new fErrorException(emsg);
+            f.ShowDialog();
+            Application.ExitThread();
+        }
+    }
+}