docs(08-06): complete unit tests for simplified permissions plan

- SUMMARY.md with 17 tests added across 3 test files
- STATE.md updated: Phase 08 complete (6/6 plans)
- ROADMAP.md updated: Phase 08 marked complete

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

.planning/ROADMAP.md

@@ -22,7 +22,7 @@
 
 - [x] **Phase 6: Global Site Selection** — Toolbar-level multi-site picker that all feature tabs consume as their default target (completed 2026-04-07)
 - [x] **Phase 7: User Access Audit** — New feature tab: export every SharePoint/Teams access a specific user holds across selected sites (completed 2026-04-07)
-- [ ] **Phase 8: Simplified Permissions** — Plain-language labels, summary counts, color coding, and detail-level toggle on the permissions report
+- [x] **Phase 8: Simplified Permissions** — Plain-language labels, summary counts, color coding, and detail-level toggle on the permissions report (completed 2026-04-07)
 - [ ] **Phase 9: Storage Visualization** — Charting dependency + pie/donut and bar chart views of storage by file type in the Storage Metrics tab
 
 ## Phase Details
@@ -75,7 +75,7 @@ Plans:
   2. The report shows summary counts per permission level with color indicators distinguishing high, medium, and low access levels
   3. A detail-level selector (simple / detailed) controls whether individual item-level rows are shown or collapsed into summary rows
   4. Toggling modes and detail level does not require re-running the scan — it re-renders from the already-fetched data
-**Plans:** 5/6 plans executed
+**Plans:** 6/6 plans complete
 Plans:
 - [ ] 08-01-PLAN.md — RiskLevel enum, PermissionLevelMapping, SimplifiedPermissionEntry, PermissionSummary (Wave 1)
 - [ ] 08-02-PLAN.md — PermissionsViewModel simplified mode, detail toggle, summary computation (Wave 2)
@@ -106,5 +106,5 @@ Plans:
 | 5. Distribution and Hardening | v1.0 | 3/3 | Complete | 2026-04-03 |
 | 6. Global Site Selection | 5/5 | Complete   | 2026-04-07 | - |
 | 7. User Access Audit | 10/10 | Complete   | 2026-04-07 | - |
-| 8. Simplified Permissions | 5/6 | In Progress|  | - |
+| 8. Simplified Permissions | 6/6 | Complete   | 2026-04-07 | - |
 | 9. Storage Visualization | v1.1 | 0/? | Not started | - |

.planning/STATE.md

@@ -3,14 +3,14 @@ gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: milestone
 status: completed
-stopped_at: Completed 08-05-PLAN.md
+stopped_at: Completed 08-06-PLAN.md
 last_updated: "2026-04-07T12:18:26.872Z"
-last_activity: 2026-04-07 — Completed 08-05 (Localization Keys and Export Wiring)
+last_activity: 2026-04-07 — Completed 08-06 (Unit Tests for Simplified Permissions)
 progress:
   total_phases: 4
   completed_phases: 2
   total_plans: 21
-  completed_plans: 20
+  completed_plans: 21
 ---
 
 # Project State
@@ -25,13 +25,13 @@ See: .planning/PROJECT.md (updated 2026-04-07)
 ## Current Position
 
 Phase: 8 — Simplified Permissions
-Plan: 5 of 6
-Status: Plan 08-05 complete, advancing to 08-06
-Last activity: 2026-04-07 — Completed 08-05 (Localization Keys and Export Wiring)
+Plan: 6 of 6
+Status: Phase 08 complete — all plans done
+Last activity: 2026-04-07 — Completed 08-06 (Unit Tests for Simplified Permissions)
 
 ```
-v1.1 Progress: [██████████] 95%
-Phase 6 [x] → Phase 7 [x] → Phase 8 [..] → Phase 9 [ ]
+v1.1 Progress: [██████████] 100%
+Phase 6 [x] → Phase 7 [x] → Phase 8 [x] → Phase 9 [ ]
 ```
 
 ## Performance Metrics
@@ -61,6 +61,7 @@ Phase 6 [x] → Phase 7 [x] → Phase 8 [..] → Phase 9 [ ]
 | Phase 08 P03 | 77 | 1 tasks | 2 files |
 | Phase 08 P04 | 2 | 2 tasks | 2 files |
 | Phase 08 P05 | 2 | 2 tasks | 4 files |
+| Phase 08 P06 | 2 | 2 tasks | 3 files |
 
 ## Accumulated Context
 
@@ -117,5 +118,5 @@ None.
 ## Session Continuity
 
 Last session: 2026-04-07T12:18:26.870Z
-Stopped at: Completed 08-05-PLAN.md
+Stopped at: Completed 08-06-PLAN.md
 Resume file: None

.planning/phases/08-simplified-permissions/08-06-SUMMARY.md

@@ -0,0 +1,77 @@
+---
+phase: 08-simplified-permissions
+plan: 06
+title: Unit Tests for Simplified Permissions
+subsystem: tests
+tags: [testing, permissions, simplified-mode, xunit]
+dependency_graph:
+  requires: [08-01, 08-02, 08-03, 08-04, 08-05]
+  provides: [test-coverage-simplified-permissions]
+  affects: [SharepointToolbox.Tests]
+tech_stack:
+  added: []
+  patterns: [Theory-InlineData-parametric, WeakReferenceMessenger-Reset-isolation, helper-factory-method]
+key_files:
+  created:
+    - SharepointToolbox.Tests/Helpers/PermissionLevelMappingTests.cs
+    - SharepointToolbox.Tests/Models/PermissionSummaryBuilderTests.cs
+  modified:
+    - SharepointToolbox.Tests/ViewModels/PermissionsViewModelTests.cs
+decisions:
+  - Used CreateViewModelWithResults helper to avoid duplicating mock setup across 4 new ViewModel tests
+metrics:
+  duration: 104s
+  completed: 2026-04-07T12:21:13Z
+  tasks_completed: 2
+  tasks_total: 2
+  tests_added: 17
+  tests_total_pass: 203
+  tests_total_skip: 22
+requirements:
+  - SIMP-01
+  - SIMP-02
+  - SIMP-03
+---
+
+# Phase 08 Plan 06: Unit Tests for Simplified Permissions Summary
+
+Unit tests for PermissionLevelMapping (11 known roles + unknown fallback + case insensitivity), PermissionSummaryBuilder (4 risk-level groups + distinct users), and PermissionsViewModel toggle behavior (simplified mode rebuild, detail toggle no-op, summary risk breakdown).
+
+## Task Completion
+
+| Task | Name | Commit | Files |
+|------|------|--------|-------|
+| 1 | Create PermissionLevelMapping and PermissionSummaryBuilder tests | 0f25fd6 | PermissionLevelMappingTests.cs, PermissionSummaryBuilderTests.cs |
+| 2 | Add simplified mode tests to PermissionsViewModelTests | 22a51c0 | PermissionsViewModelTests.cs |
+
+## Test Coverage Added
+
+### PermissionLevelMappingTests (9 methods, 22 test cases with Theory)
+- **GetMapping_KnownRoles_ReturnsCorrectRiskLevel** (11 InlineData): All built-in SharePoint roles mapped correctly
+- **GetMapping_UnknownRole_ReturnsMediumRiskWithRawName**: Custom roles fall back to Medium with raw name
+- **GetMapping_CaseInsensitive**: Mapping works regardless of casing
+- **GetMappings_SemicolonDelimited_SplitsAndMaps**: Semicolon-delimited input correctly split
+- **GetMappings_EmptyString_ReturnsEmpty**: Empty input handled gracefully
+- **GetHighestRisk_MultipleLevels_ReturnsHighest**: High wins over Low
+- **GetHighestRisk_SingleReadOnly_ReturnsReadOnly**: Single ReadOnly preserved
+- **GetSimplifiedLabels_JoinsLabels**: Labels joined with semicolons
+
+### PermissionSummaryBuilderTests (4 methods)
+- **Build_ReturnsAllFourRiskLevels**: Always returns 4 groups even with 1 entry per level
+- **Build_EmptyCollection_ReturnsZeroCounts**: Empty input returns 4 groups with count 0
+- **Build_CountsDistinctUsers**: 3 entries with 2 distinct users counted correctly
+- **SimplifiedPermissionEntry_WrapAll_PreservesInner**: Inner reference preserved, passthrough properties correct
+
+### PermissionsViewModelTests (4 new methods, 5 total)
+- **IsSimplifiedMode_Default_IsFalse**: Default state verification
+- **IsSimplifiedMode_WhenToggled_RebuildsSimplifiedResults**: Toggle populates SimplifiedResults and Summaries
+- **IsDetailView_Toggle_DoesNotChangeCounts**: Detail toggle does not re-compute data
+- **Summaries_ContainsCorrectRiskBreakdown**: Risk counts match input entries
+
+## Deviations from Plan
+
+None - plan executed exactly as written.
+
+## Verification
+
+Full test suite: 203 passed, 22 skipped, 0 failed.