Add project files.

Services/HardwareInforManager.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Management;
+using System.Security.Cryptography;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SafeBagDE70.Services
+{
+    public static class HardwareInforManager
+    {
+        public static string GetHardwareId()
+        {
+            string cpuId = GetCpuId();
+            string biosId = GetBiosId();
+            string motherboardId = GetMotherboardId();
+
+            // Combine the strings and create a hash
+            string combined = cpuId + biosId + motherboardId;
+            string hardwareId = CreateMD5Hash(combined);
+
+            return hardwareId;
+        }
+
+        public static string GetCpuId()
+        {
+            return GetHardwareInfo("Win32_Processor", "ProcessorId");
+        }
+
+        public static string GetBiosId()
+        {
+            return GetHardwareInfo("Win32_BIOS", "SerialNumber");
+        }
+
+        public static string GetMotherboardId()
+        {
+            return GetHardwareInfo("Win32_BaseBoard", "SerialNumber");
+        }
+
+        private static string GetHardwareInfo(string wmiClass, string wmiProperty)
+        {
+            try
+            {
+                ManagementObjectSearcher searcher = new ManagementObjectSearcher($"select {wmiProperty} from {wmiClass}");
+                foreach (ManagementObject obj in searcher.Get())
+                {
+                    return obj[wmiProperty]?.ToString() ?? string.Empty;
+                }
+            }
+            catch (Exception ex)
+            {
+                throw new Exception($"Failed to retrieve {wmiClass} {wmiProperty}: " + ex.Message);
+            }
+            return string.Empty;
+        }
+
+        private static string CreateMD5Hash(string input)
+        {
+            using (MD5 md5 = MD5.Create())
+            {
+                byte[] inputBytes = Encoding.ASCII.GetBytes(input);
+                byte[] hashBytes = md5.ComputeHash(inputBytes);
+                return string.Join("", hashBytes.Select(b => b.ToString("X2")));
+            }
+        }
+    }
+}