chore: archive v1.1 Enhanced Reports milestone

v1.1 shipped with 4 phases (25 plans), 10/10 requirements complete:
- Global site selection (toolbar picker, all tabs consume)
- User access audit (Graph people-picker, direct/group/inherited)
- Simplified permissions (plain-language labels, risk levels, detail toggle)
- Storage visualization (LiveCharts2 pie/donut + bar charts)

Post-phase polish: centralized site selection (removed per-tab pickers),
claims prefix stripping, StorageMetrics backfill, chart tooltip fix,
summary stats in app + HTML exports.

205 tests passing, 10,484 LOC.

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

SharepointToolbox/ViewModels/Tabs/TemplatesViewModel.cs

@@ -29,7 +29,6 @@ public partial class TemplatesViewModel : FeatureViewModelBase
     [ObservableProperty] private SiteTemplate? _selectedTemplate;
 
     // Capture options
-    [ObservableProperty] private string _captureSiteUrl = string.Empty;
     [ObservableProperty] private string _templateName = string.Empty;
     [ObservableProperty] private bool _captureLibraries = true;
     [ObservableProperty] private bool _captureFolders = true;
@@ -81,11 +80,13 @@ public partial class TemplatesViewModel : FeatureViewModelBase
     {
         if (_currentProfile == null)
             throw new InvalidOperationException("No tenant connected.");
-        if (string.IsNullOrWhiteSpace(CaptureSiteUrl))
-            throw new InvalidOperationException("Site URL is required.");
         if (string.IsNullOrWhiteSpace(TemplateName))
             throw new InvalidOperationException("Template name is required.");
 
+        var captureSiteUrl = GlobalSites.Select(s => s.Url).FirstOrDefault(u => !string.IsNullOrWhiteSpace(u));
+        if (string.IsNullOrWhiteSpace(captureSiteUrl))
+            throw new InvalidOperationException("Select at least one site from the toolbar.");
+
         try
         {
             IsRunning = true;
@@ -94,7 +95,7 @@ public partial class TemplatesViewModel : FeatureViewModelBase
             var profile = new TenantProfile
             {
                 Name = _currentProfile.Name,
-                TenantUrl = CaptureSiteUrl,
+                TenantUrl = captureSiteUrl,
                 ClientId = _currentProfile.ClientId,
             };
             var ctx = await _sessionManager.GetOrCreateContextAsync(profile, CancellationToken.None);
@@ -113,7 +114,7 @@ public partial class TemplatesViewModel : FeatureViewModelBase
             template.Name = TemplateName;
 
             await _templateRepo.SaveAsync(template);
-            Log.Information("Template captured: {Name} from {Url}", template.Name, CaptureSiteUrl);
+            Log.Information("Template captured: {Name} from {Url}", template.Name, captureSiteUrl);
 
             await RefreshListAsync();
             StatusMessage = $"Template captured successfully.";
@@ -200,7 +201,6 @@ public partial class TemplatesViewModel : FeatureViewModelBase
     protected override void OnTenantSwitched(TenantProfile profile)
     {
         _currentProfile = profile;
-        CaptureSiteUrl = string.Empty;
         TemplateName = string.Empty;
         NewSiteTitle = string.Empty;
         NewSiteAlias = string.Empty;