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/Views/Tabs/TemplatesView.xaml

@@ -9,10 +9,6 @@
             <GroupBox Header="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[templates.capture]}"
                       Margin="0,0,0,10">
                 <StackPanel Margin="5">
-                    <TextBlock Text="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[templates.siteurl]}"
-                               Margin="0,0,0,3" />
-                    <TextBox Text="{Binding CaptureSiteUrl, UpdateSourceTrigger=PropertyChanged}" Margin="0,0,0,5" />
-
                     <TextBlock Text="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[templates.name]}"
                                Margin="0,0,0,3" />
                     <TextBox Text="{Binding TemplateName, UpdateSourceTrigger=PropertyChanged}" Margin="0,0,0,10" />