- Message broadcast: GlobalSitesChangedMessage carries site list to receivers
- Base class: FeatureViewModelBase.GlobalSites updated on message receive
- Storage tab: SiteUrl pre-filled from first global site
- Storage tab: local override prevents global from overwriting SiteUrl
- Storage tab: clearing SiteUrl reverts to global site (override reset)
- Permissions tab: SelectedSites pre-populated from global sites
- Permissions tab: local picker override blocks subsequent global updates
- Tenant switch: resets local override so new global sites apply cleanly
- Transfer tab: SourceSiteUrl pre-filled from first global site
- MainWindowViewModel: GlobalSitesSelectedLabel reflects site count
- Add DataGrid RowStyle with red highlighting for invalid CSV rows
in BulkMembersView, BulkSitesView, and FolderStructureView
- Fix cancel test locale mismatch by setting EN culture before assertion
- Remove dead FeatureTabBase placeholder (replaced by full tab views)
- Clean up unused xmlns:controls from MainWindow.xaml
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>