v1.15 — PowerShell edition + repo restructure

- New powershell/InstaSoftOfficeTool.ps1: single-file WPF GUI version
  - Same Fluent Design UI, no compilation needed
  - Runs on any Windows 7+ with PowerShell 5.1 (built-in)
  - Chrome won't flag .ps1 files as "rarely downloaded"
  - Auto-elevates to admin
- Moved C# source to src/ subfolder
- Updated .gitignore for nested bin/obj folders

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Services/OfficeDetector.cs

@@ -1,116 +0,0 @@
-using System.Collections.Generic;
-using System.Text.RegularExpressions;
-using InstaSoftOfficeTool.Models;
-using Microsoft.Win32;
-
-namespace InstaSoftOfficeTool.Services
-{
-    public static class OfficeDetector
-    {
-        public static List<InstalledOffice> Detect()
-        {
-            var results = new List<InstalledOffice>();
-
-            // Check Click-to-Run
-            DetectClickToRun(results);
-
-            // Check MSI-based installs
-            DetectMsi(results);
-
-            return results;
-        }
-
-        private static void DetectClickToRun(List<InstalledOffice> results)
-        {
-            try
-            {
-                using (var key = Registry.LocalMachine.OpenSubKey(
-                    @"SOFTWARE\Microsoft\Office\ClickToRun\Configuration"))
-                {
-                    if (key == null) return;
-
-                    var productIds = key.GetValue("ProductReleaseIds") as string;
-                    var versionToReport = key.GetValue("VersionToReport") as string;
-
-                    if (string.IsNullOrEmpty(productIds)) return;
-
-                    // Split into individual products (e.g. "O365BusinessRetail,VisioProRetail")
-                    var ids = productIds.Split(',');
-                    foreach (var id in ids)
-                    {
-                        var trimmedId = id.Trim();
-                        if (string.IsNullOrEmpty(trimmedId)) continue;
-
-                        results.Add(new InstalledOffice
-                        {
-                            DisplayName = "Microsoft Office Click-to-Run (" + trimmedId + ")",
-                            Version = versionToReport ?? "",
-                            ProductCode = trimmedId,
-                            IsClickToRun = true,
-                            IsSelected = true
-                        });
-                    }
-                }
-            }
-            catch { }
-        }
-
-        private static void DetectMsi(List<InstalledOffice> results)
-        {
-            var uninstallPaths = new[]
-            {
-                @"SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall",
-                @"SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall"
-            };
-
-            foreach (var path in uninstallPaths)
-            {
-                try
-                {
-                    using (var key = Registry.LocalMachine.OpenSubKey(path))
-                    {
-                        if (key == null) continue;
-
-                        foreach (var subKeyName in key.GetSubKeyNames())
-                        {
-                            using (var subKey = key.OpenSubKey(subKeyName))
-                            {
-                                if (subKey == null) continue;
-
-                                var displayName = subKey.GetValue("DisplayName") as string;
-                                var publisher = subKey.GetValue("Publisher") as string;
-
-                                if (displayName != null &&
-                                    publisher != null &&
-                                    publisher.Contains("Microsoft") &&
-                                    (displayName.Contains("Microsoft Office") ||
-                                     displayName.Contains("Microsoft 365")))
-                                {
-                                    var version = subKey.GetValue("DisplayVersion") as string ?? "";
-
-                                    // Skip Click-to-Run updater entries
-                                    if (displayName.Contains("Click-to-Run") &&
-                                        !displayName.Contains("Microsoft Office"))
-                                        continue;
-
-                                    // Only accept {GUID} product codes for MSI uninstall
-                                    bool isGuid = Regex.IsMatch(subKeyName, @"^\{[0-9A-Fa-f\-]+\}$");
-
-                                    results.Add(new InstalledOffice
-                                    {
-                                        DisplayName = displayName,
-                                        Version = version,
-                                        ProductCode = isGuid ? subKeyName : null,
-                                        IsClickToRun = false,
-                                        IsSelected = true
-                                    });
-                                }
-                            }
-                        }
-                    }
-                }
-                catch { }
-            }
-        }
-    }
-}