docs: define milestone v1.1 requirements (10 requirements)

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

.planning/REQUIREMENTS.md

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+# Requirements: SharePoint Toolbox v1.1 Enhanced Reports
+
+**Defined:** 2026-04-07
+**Core Value:** Administrators can audit and manage SharePoint/Teams permissions and storage across multiple client tenants from a single, reliable desktop application.
+
+## v1.1 Requirements
+
+### Global Site Selection
+
+- [ ] **SITE-01**: User can select one or multiple target sites from the toolbar and all feature tabs use that selection as default
+- [ ] **SITE-02**: User can override global site selection per-tab for single-site operations
+
+### User Access Audit
+
+- [ ] **UACC-01**: User can export all SharePoint/Teams accesses a specific user has across selected sites
+- [ ] **UACC-02**: Export includes direct assignments, group memberships, and inherited access
+
+### Simplified Permissions
+
+- [ ] **SIMP-01**: User can toggle plain-language permission labels (e.g., "Can edit files" instead of "Contribute")
+- [ ] **SIMP-02**: Permissions report includes summary counts and color coding for untrained readers
+- [ ] **SIMP-03**: User can choose detail level (simple/detailed) for reports
+
+### Storage Visualization
+
+- [ ] **VIZZ-01**: Storage Metrics tab includes a graph showing space by file type
+- [ ] **VIZZ-02**: User can toggle between pie/donut chart and bar chart views
+- [ ] **VIZZ-03**: Graph updates automatically when storage scan completes
+
+## Future Requirements
+
+None deferred — all active requirements scoped to v1.1.
+
+## Out of Scope
+
+| Feature | Reason |
+|---------|--------|
+| Cross-platform (Mac/Linux) | WPF is Windows-only; not justified for current user base |
+| Real-time monitoring / alerts | Requires background service, beyond scope |
+| Automated remediation (auto-revoke) | Liability risk |
+| Content migration between tenants | Separate product category |
+| Version history management | Surface totals in storage metrics only |
+
+## Traceability
+
+| Requirement | Phase | Status |
+|-------------|-------|--------|
+| SITE-01 | — | Pending |
+| SITE-02 | — | Pending |
+| UACC-01 | — | Pending |
+| UACC-02 | — | Pending |
+| SIMP-01 | — | Pending |
+| SIMP-02 | — | Pending |
+| SIMP-03 | — | Pending |
+| VIZZ-01 | — | Pending |
+| VIZZ-02 | — | Pending |
+| VIZZ-03 | — | Pending |
+
+**Coverage:**
+- v1.1 requirements: 10 total
+- Mapped to phases: 0 (pending roadmap)
+- Unmapped: 10
+
+---
+*Requirements defined: 2026-04-07*