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>

Pages/ConfigPage.xaml.cs

@@ -1,103 +0,0 @@
-using System.Collections.Generic;
-using System.Windows;
-using System.Windows.Controls;
-using InstaSoftOfficeTool.Models;
-
-namespace InstaSoftOfficeTool.Pages
-{
-    public partial class ConfigPage : Page, IWizardPage
-    {
-        private readonly MainWindow _main;
-        private readonly InstallConfig _config;
-        private readonly List<CheckBox> _appCheckBoxes = new List<CheckBox>();
-
-        public ConfigPage(MainWindow main, InstallConfig config)
-        {
-            InitializeComponent();
-            _main = main;
-            _config = config;
-
-            // Restore arch
-            if (_config.Architecture == "32")
-            {
-                Rb32.IsChecked = true;
-            }
-
-            // Populate language combo
-            foreach (var lang in LanguageList.Languages)
-            {
-                CbLanguage.Items.Add(new ComboBoxItem
-                {
-                    Content = lang.Name + " (" + lang.Code + ")",
-                    Tag = lang.Code
-                });
-            }
-
-            // Select current language
-            for (int i = 0; i < CbLanguage.Items.Count; i++)
-            {
-                var item = (ComboBoxItem)CbLanguage.Items[i];
-                if ((string)item.Tag == _config.Language)
-                {
-                    CbLanguage.SelectedIndex = i;
-                    break;
-                }
-            }
-            if (CbLanguage.SelectedIndex < 0) CbLanguage.SelectedIndex = 0;
-
-            // Populate app checkboxes
-            foreach (var app in ExcludableApps.Apps)
-            {
-                // Ha m\u00e1r van ment\u00e9s a configban, azt haszn\u00e1ljuk; k\u00fcl\u00f6nben a default\u00f6t
-                bool isChecked = _config.ExcludedApps.Count > 0
-                    ? !_config.ExcludedApps.Contains(app.Id)
-                    : app.DefaultChecked;
-
-                bool isProPlus = _config.Edition != null &&
-                    _config.Edition.ProductId.Contains("ProPlus");
-                bool isStandard = _config.Edition != null &&
-                    _config.Edition.ProductId.Contains("Standard");
-
-                bool unavailable = false;
-                if (app.MinEdition == "proplus" && !isProPlus)
-                    unavailable = true;
-                else if (app.MinEdition == "standard+" && !isProPlus && !isStandard)
-                    unavailable = true;
-
-                var cb = new CheckBox
-                {
-                    Content = app.DisplayName,
-                    IsChecked = unavailable ? false : isChecked,
-                    IsEnabled = !unavailable,
-                    Tag = app.Id,
-                    Style = (Style)FindResource("FluentCheckBox"),
-                    Margin = new Thickness(0, 4, 24, 4),
-                    MinWidth = 160
-                };
-                _appCheckBoxes.Add(cb);
-                AppCheckBoxes.Children.Add(cb);
-            }
-        }
-
-        public bool Validate()
-        {
-            _config.Architecture = Rb64.IsChecked == true ? "64" : "32";
-
-            if (CbLanguage.SelectedItem is ComboBoxItem selected)
-            {
-                _config.Language = (string)selected.Tag;
-            }
-
-            _config.ExcludedApps.Clear();
-            foreach (var cb in _appCheckBoxes)
-            {
-                if (cb.IsChecked != true || !cb.IsEnabled)
-                {
-                    _config.ExcludedApps.Add((string)cb.Tag);
-                }
-            }
-
-            return true;
-        }
-    }
-}