docs(19-02): complete register/remove app UI plan

- 19-02-SUMMARY.md created
- STATE.md: progress 100%, decisions, session updated
- ROADMAP.md: phase 19 marked complete
- REQUIREMENTS.md: APPREG-01, APPREG-04, APPREG-05 marked complete

.planning/STATE.md

@@ -3,14 +3,14 @@ gsd_state_version: 1.0
 milestone: v2.3
 milestone_name: Tenant Management & Report Enhancements
 status: planning
-stopped_at: Completed 19-01-PLAN.md
-last_updated: "2026-04-09T13:15:04.040Z"
+stopped_at: Completed 19-02-PLAN.md
+last_updated: "2026-04-09T13:20:41.127Z"
 last_activity: 2026-04-09 — Roadmap created for v2.3 (phases 15-19)
 progress:
   total_phases: 5
-  completed_phases: 4
+  completed_phases: 5
   total_plans: 10
-  completed_plans: 9
+  completed_plans: 10
 ---
 
 # Project State
@@ -79,6 +79,9 @@ Decisions are logged in PROJECT.md Key Decisions table.
 - [Phase 19-app-registration-removal]: AppRegistrationService uses AppGraphClientFactory alias to disambiguate from Microsoft.Graph.GraphClientFactory
 - [Phase 19-app-registration-removal]: BuildRequiredResourceAccess declared internal to enable direct unit testing without live Graph calls
 - [Phase 19-app-registration-removal]: SharePoint AllSites.FullControl GUID marked LOW confidence — must be verified against live tenant
+- [Phase 19-app-registration-removal]: ProfileManagementViewModel constructor gains IAppRegistrationService as last param — existing logo tests updated to 5-param
+- [Phase 19-app-registration-removal]: TranslationSource.Instance used directly in ViewModel for status strings (consistent with runtime locale switching)
+- [Phase 19-app-registration-removal]: BooleanToVisibilityConverter declared in Window.Resources (WPF built-in, no custom converter needed)
 
 ### Pending Todos
 
@@ -90,7 +93,7 @@ None.
 
 ## Session Continuity
 
-Last session: 2026-04-09T13:15:04.038Z
-Stopped at: Completed 19-01-PLAN.md
+Last session: 2026-04-09T13:20:36.865Z
+Stopped at: Completed 19-02-PLAN.md
 Resume file: None
 Next step: `/gsd:plan-phase 15`