chore: complete v1.0 milestone

Archive 5 phases (36 plans) to milestones/v1.0-phases/.
Archive roadmap, requirements, and audit to milestones/.
Evolve PROJECT.md with shipped state and validated requirements.
Collapse ROADMAP.md to one-line milestone summary.

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

.planning/milestones/v1.0-phases/04-bulk-operations-and-provisioning/04-09-SUMMARY.md

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+---
+phase: 04-bulk-operations-and-provisioning
+plan: 09
+subsystem: ui
+tags: [wpf, mvvm, community-toolkit, datagrid, csv, bulk-operations]
+
+requires:
+  - phase: 04-bulk-operations-and-provisioning
+    provides: IBulkMemberService, IBulkSiteService, IFolderStructureService, ICsvValidationService, BulkResultCsvExportService, ConfirmBulkOperationDialog
+provides:
+  - BulkMembersViewModel with CSV import/validate/preview/confirm/execute/retry/export flow
+  - BulkSitesViewModel with same flow for site creation
+  - FolderStructureViewModel with site URL + library inputs + folder CSV flow
+  - BulkMembersView XAML + code-behind wiring ConfirmBulkOperationDialog
+  - BulkSitesView XAML + code-behind
+  - FolderStructureView XAML + code-behind with SiteUrl and LibraryTitle TextBox inputs
+affects: [04-10]
+
+tech-stack:
+  added: []
+  patterns:
+    - FeatureViewModelBase pattern extended for CSV-based bulk tabs (same as Phase 2/3 VMs)
+    - ShowConfirmDialog Func<string,bool> wired in code-behind — dialog factory pattern preserving VM testability
+
+key-files:
+  created:
+    - SharepointToolbox/ViewModels/Tabs/BulkMembersViewModel.cs
+    - SharepointToolbox/ViewModels/Tabs/BulkSitesViewModel.cs
+    - SharepointToolbox/ViewModels/Tabs/FolderStructureViewModel.cs
+    - SharepointToolbox/Views/Tabs/BulkMembersView.xaml
+    - SharepointToolbox/Views/Tabs/BulkMembersView.xaml.cs
+    - SharepointToolbox/Views/Tabs/BulkSitesView.xaml
+    - SharepointToolbox/Views/Tabs/BulkSitesView.xaml.cs
+    - SharepointToolbox/Views/Tabs/FolderStructureView.xaml
+    - SharepointToolbox/Views/Tabs/FolderStructureView.xaml.cs
+  modified: []
+
+key-decisions:
+  - "BulkMembersViewModel passes _currentProfile.ClientId to AddMembersAsync — IBulkMemberService signature requires clientId for Graph API authentication; plan code omitted this parameter"
+  - "Duplicate standalone converter files (EnumBoolConverter.cs, StringToVisibilityConverter.cs, ListToStringConverter.cs) removed — these classes already exist in IndentConverter.cs which is the established project pattern"
+
+patterns-established:
+  - "Bulk tab pattern: ImportCsvCommand -> ParseAndValidate -> PreviewRows ObservableCollection -> ShowConfirmDialog Func -> RunOperationAsync -> HasFailures -> RetryFailedCommand + ExportFailedCommand"
+  - "FolderStructureViewModel overrides TenantProfile with site URL for new ClientContext — established pattern from StorageViewModel/SearchViewModel"
+
+requirements-completed:
+  - BULK-02
+  - BULK-03
+  - BULK-04
+  - BULK-05
+  - FOLD-01
+  - FOLD-02
+
+duration: 15min
+completed: 2026-04-03
+---
+
+# Phase 4 Plan 9: BulkMembersViewModel + BulkSitesViewModel + FolderStructureViewModel + Views Summary
+
+**Three CSV bulk-operation tabs with import/validate/preview/confirm/execute/retry/export flows, each wired to its respective service via FeatureViewModelBase pattern**
+
+## Performance
+
+- **Duration:** 15 min
+- **Started:** 2026-04-03T08:18:00Z
+- **Completed:** 2026-04-03T08:33:00Z
+- **Tasks:** 2 (committed together per plan spec)
+- **Files modified:** 9 created
+
+## Accomplishments
+- Three ViewModels following identical CSV bulk-operation flow with service-specific execution logic
+- Three XAML Views with DataGrid preview, localization bindings, and ConfirmBulkOperationDialog wiring
+- FolderStructureView adds site URL and library title TextBox inputs not in other bulk tabs
+- Build verified clean (warnings only, no errors) after fixing pre-existing duplicate converter issue
+
+## Task Commits
+
+1. **Tasks 1+2: ViewModels + Views** - `fcd5d1d` (feat) — all 9 files in single commit per plan spec
+
+## Files Created/Modified
+- `SharepointToolbox/ViewModels/Tabs/BulkMembersViewModel.cs` - Bulk Members tab VM with Graph/CSOM member add flow
+- `SharepointToolbox/ViewModels/Tabs/BulkSitesViewModel.cs` - Bulk Sites tab VM for site creation
+- `SharepointToolbox/ViewModels/Tabs/FolderStructureViewModel.cs` - Folder Structure tab VM with site URL + library inputs
+- `SharepointToolbox/Views/Tabs/BulkMembersView.xaml` - Bulk Members XAML with DataGrid preview
+- `SharepointToolbox/Views/Tabs/BulkMembersView.xaml.cs` - Code-behind wiring ShowConfirmDialog
+- `SharepointToolbox/Views/Tabs/BulkSitesView.xaml` - Bulk Sites XAML
+- `SharepointToolbox/Views/Tabs/BulkSitesView.xaml.cs` - Code-behind wiring ShowConfirmDialog
+- `SharepointToolbox/Views/Tabs/FolderStructureView.xaml` - Folder Structure XAML with site/library inputs
+- `SharepointToolbox/Views/Tabs/FolderStructureView.xaml.cs` - Code-behind wiring ShowConfirmDialog
+
+## Decisions Made
+- BulkMembersViewModel passes `_currentProfile.ClientId` to `AddMembersAsync` — the IBulkMemberService interface requires this for Graph API client creation; the plan code omitted it, requiring adaptation.
+- Duplicate standalone converter files removed — EnumBoolConverter.cs, StringToVisibilityConverter.cs, ListToStringConverter.cs were untracked files from a previous plan session that duplicated classes already in IndentConverter.cs.
+
+## Deviations from Plan
+
+### Auto-fixed Issues
+
+**1. [Rule 3 - Blocking] Fixed duplicate converter class definitions blocking compilation**
+- **Found during:** Task 1 (first build verification)
+- **Issue:** Three untracked standalone converter files (EnumBoolConverter.cs, StringToVisibilityConverter.cs, ListToStringConverter.cs) duplicated classes already defined in IndentConverter.cs, causing CS0101 errors
+- **Fix:** Deleted the three standalone files; IndentConverter.cs remains the single source of all converter classes (established project pattern)
+- **Files modified:** Deleted SharepointToolbox/Views/Converters/EnumBoolConverter.cs, StringToVisibilityConverter.cs, ListToStringConverter.cs
+- **Verification:** Build produces 0 errors (only pre-existing CS8602 nullable warnings in CsvValidationService)
+- **Committed in:** fcd5d1d (Task 1+2 commit)
+
+**2. [Rule 1 - Bug] BulkMembersViewModel passes clientId to AddMembersAsync**
+- **Found during:** Task 1 implementation
+- **Issue:** Plan code called `_memberService.AddMembersAsync(ctx, _validRows, progress, ct)` but IBulkMemberService signature requires `string clientId` parameter after ctx
+- **Fix:** Call site updated to `_memberService.AddMembersAsync(ctx, _currentProfile.ClientId, _validRows, progress, ct)`
+- **Files modified:** SharepointToolbox/ViewModels/Tabs/BulkMembersViewModel.cs
+- **Verification:** Build compiles clean
+- **Committed in:** fcd5d1d (Task 1+2 commit)
+
+---
+
+**Total deviations:** 2 auto-fixed (1 blocking, 1 bug)
+**Impact on plan:** Both fixes necessary for correctness. No scope creep.
+
+## Issues Encountered
+None beyond the two auto-fixed items above.
+
+## User Setup Required
+None - no external service configuration required.
+
+## Next Phase Readiness
+- All three bulk-operation ViewModels and Views complete
+- Plan 04-10 (DI registration + MainWindow wiring) can now register and integrate these Views
+- No blockers
+
+---
+*Phase: 04-bulk-operations-and-provisioning*
+*Completed: 2026-04-03*