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>

.planning/milestones/v1.1-REQUIREMENTS.md

@@ -0,0 +1,57 @@
+# Requirements Archive: SharePoint Toolbox v1.1 Enhanced Reports
+
+**Defined:** 2026-04-07
+**Completed:** 2026-04-08
+**Coverage:** 10/10 requirements complete
+
+## Requirements
+
+### Global Site Selection
+
+- [x] **SITE-01**: User can select one or multiple target sites from the toolbar and all feature tabs use that selection as default
+- [x] **SITE-02**: User can override global site selection per-tab for single-site operations
+  - *Outcome: Initially implemented, later removed — per-tab selectors replaced by centralized global-only selection*
+
+### User Access Audit
+
+- [x] **UACC-01**: User can export all SharePoint/Teams accesses a specific user has across selected sites
+- [x] **UACC-02**: Export includes direct assignments, group memberships, and inherited access
+
+### Simplified Permissions
+
+- [x] **SIMP-01**: User can toggle plain-language permission labels (e.g., "Can edit files" instead of "Contribute")
+- [x] **SIMP-02**: Permissions report includes summary counts and color coding for untrained readers
+- [x] **SIMP-03**: User can choose detail level (simple/detailed) for reports
+
+### Storage Visualization
+
+- [x] **VIZZ-01**: Storage Metrics tab includes a graph showing space by file type
+- [x] **VIZZ-02**: User can toggle between pie/donut chart and bar chart views
+- [x] **VIZZ-03**: Graph updates automatically when storage scan completes
+
+## Traceability
+
+| Requirement | Phase | Status | Notes |
+|-------------|-------|--------|-------|
+| SITE-01 | Phase 6 | Complete | |
+| SITE-02 | Phase 6 | Complete | Per-tab override later removed in favor of global-only |
+| UACC-01 | Phase 7 | Complete | |
+| UACC-02 | Phase 7 | Complete | |
+| SIMP-01 | Phase 8 | Complete | 11 standard SharePoint roles mapped |
+| SIMP-02 | Phase 8 | Complete | 4 risk levels: High/Medium/Low/ReadOnly |
+| SIMP-03 | Phase 8 | Complete | |
+| VIZZ-01 | Phase 9 | Complete | LiveCharts2 SkiaSharp backend |
+| VIZZ-02 | Phase 9 | Complete | |
+| VIZZ-03 | Phase 9 | Complete | |
+
+## Out of Scope
+
+| Feature | Reason |
+|---------|--------|
+| Cross-platform (Mac/Linux) | WPF is Windows-only |
+| Real-time monitoring / alerts | Requires background service |
+| Automated remediation (auto-revoke) | Liability risk |
+| Content migration between tenants | Separate product category |
+
+---
+*Archived: 2026-04-08*

.planning/milestones/v1.1-ROADMAP.md

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+# v1.1 Enhanced Reports — Milestone Archive
+
+**Goal:** Add user access audit, simplified permissions, storage visualization, and global multi-site selection
+**Status:** Shipped 2026-04-08
+**Timeline:** 2026-04-07 to 2026-04-08
+
+## Stats
+
+| Metric | Value |
+|--------|-------|
+| Phases | 4 (Phases 6-9) |
+| Plans | 25 |
+| Commits | 29 |
+| C# LOC (total) | 10,484 |
+| Tests | 205 pass / 22 skip |
+| Requirements | 10/10 complete |
+
+## Key Accomplishments
+
+1. **Global Site Selection (Phase 6)** — Toolbar-level multi-site picker consumed by all feature tabs. Per-tab site selectors removed in favor of centralized selection. WeakReferenceMessenger broadcast pattern.
+
+2. **User Access Audit (Phase 7)** — New feature tab: people-picker with Graph API autocomplete, audit every permission a specific user holds across selected sites, distinguish direct/group/inherited access, export to CSV/HTML. Claims prefix stripping for clean display.
+
+3. **Simplified Permissions (Phase 8)** — Plain-language labels mapped from 11 standard SharePoint roles, color-coded risk levels (High/Medium/Low/ReadOnly), summary cards with counts, detail-level toggle (simple/detailed), simplified export overloads for both CSV and HTML.
+
+4. **Storage Visualization (Phase 9)** — LiveCharts2 (SkiaSharp) integration for pie/donut and bar chart views of storage by file type. CamlQuery-based file enumeration to work around StorageMetrics API zeros. Custom single-slice tooltip. Per-library backfill for accurate folder-level metrics. Chart data included in HTML/CSV exports with summary stat cards.
+
+5. **Post-phase Polish** — Removed per-tab site selectors from 8 tabs (centralized to global toolbar), fixed UserAccessAudit DataGrid binding (CollectionViewSource disconnect), added site-level summary totals to Storage tab and HTML reports, suppressed NU1701 NuGet warnings.
+
+## Phases
+
+### Phase 6: Global Site Selection (5 plans)
+- GlobalSitesChangedMessage + FeatureViewModelBase extension
+- MainWindowViewModel global selection state + command
+- Toolbar UI, dialog wiring, and localization keys
+- Tab VM updates for global site consumption
+- Unit tests for global site selection flow
+
+### Phase 7: User Access Audit (10 plans)
+- UserAccessEntry model + service interfaces
+- UserAccessAuditService implementation
+- GraphUserSearchService implementation
+- UserAccessAuditViewModel
+- UserAccessAuditView XAML layout
+- CSV + HTML export services
+- Tab wiring, DI, localization
+- Unit tests
+- Gap closure: DataGrid visual indicators + ObjectType column
+- Gap closure: Debounced search unit test
+
+### Phase 8: Simplified Permissions (6 plans)
+- RiskLevel enum, PermissionLevelMapping, SimplifiedPermissionEntry, PermissionSummary
+- PermissionsViewModel simplified mode, detail toggle, summary computation
+- PermissionsView XAML: toggles, summary panel, color-coded DataGrid
+- HTML + CSV export simplified overloads
+- Localization keys (EN/FR) + export command wiring
+- Unit tests: mapping, summary, ViewModel toggle behavior
+
+### Phase 9: Storage Visualization (4 plans)
+- LiveCharts2 NuGet + FileTypeMetric model + IStorageService extension
+- StorageService file-type enumeration implementation
+- ViewModel chart properties + View XAML + localization
+- Unit tests for chart ViewModel behavior
+
+## Requirements Covered
+
+| Requirement | Description | Status |
+|-------------|-------------|--------|
+| SITE-01 | Global multi-site selection from toolbar | Complete |
+| SITE-02 | Per-tab override capability | Complete (later removed — centralized) |
+| UACC-01 | Export all user accesses across sites | Complete |
+| UACC-02 | Distinguish direct/group/inherited access | Complete |
+| SIMP-01 | Plain-language permission labels | Complete |
+| SIMP-02 | Summary counts with color coding | Complete |
+| SIMP-03 | Detail-level selector | Complete |
+| VIZZ-01 | Charting library integration | Complete |
+| VIZZ-02 | Toggle pie/donut vs bar chart | Complete |
+| VIZZ-03 | Auto-update chart on scan complete | Complete |
+
+---
+*Archived: 2026-04-08*