docs(01-01): complete solution scaffold plan — SUMMARY, STATE, ROADMAP updated

- 01-01-SUMMARY.md created with deviations, decisions, and metrics
- STATE.md: progress 13% (1/8 plans), 3 decisions added, metrics recorded
- ROADMAP.md: Phase 1 marked In Progress (1/8 summaries)
- REQUIREMENTS.md: FOUND-01 marked complete

.planning/STATE.md

@@ -1,3 +1,19 @@
+---
+gsd_state_version: 1.0
+milestone: v1.0
+milestone_name: milestone
+status: planning
+stopped_at: Completed 01-foundation-01-PLAN.md
+last_updated: "2026-04-02T10:04:03.489Z"
+last_activity: 2026-04-02 — Roadmap created, requirements mapped, all 42 v1 requirements assigned to phases
+progress:
+  total_phases: 5
+  completed_phases: 0
+  total_plans: 8
+  completed_plans: 1
+  percent: 13
+---
+
 # Project State
 
 ## Project Reference
@@ -14,7 +30,7 @@ Plan: 0 of ? in current phase
 Status: Ready to plan
 Last activity: 2026-04-02 — Roadmap created, requirements mapped, all 42 v1 requirements assigned to phases
 
-Progress: [░░░░░░░░░░] 0%
+Progress: [█░░░░░░░░░] 13%
 
 ## Performance Metrics
 
@@ -34,6 +50,7 @@ Progress: [░░░░░░░░░░] 0%
 - Trend: —
 
 *Updated after each plan completion*
+| Phase 01-foundation P01 | 4 | 2 tasks | 14 files |
 
 ## Accumulated Context
 
@@ -46,6 +63,9 @@ Recent decisions affecting current work:
 - Foundation: Use MsalCacheHelper for per-tenant token cache serialization — scope IPublicClientApplication per ClientId
 - Foundation: Never set PublishTrimmed=true — PnP.Framework and MSAL use reflection; accept ~150-200 MB EXE
 - Foundation: Establish AsyncRelayCommand + IProgress<T> + CancellationToken patterns before any feature work — retrofitting is the most expensive WPF refactor
+- [Phase 01-foundation]: Upgraded MSAL from 4.83.1 to 4.83.3 — Extensions.Msal 4.83.3 requires MSAL >= 4.83.3; minor patch with no behavioral difference
+- [Phase 01-foundation]: Test project targets net10.0-windows with UseWPF=true — required to reference WPF main project; net10.0 is framework-incompatible
+- [Phase 01-foundation]: Solution uses .slnx format (new .NET 10 XML solution) — dotnet new sln creates .slnx by default in .NET 10 SDK
 
 ### Pending Todos
 
@@ -59,6 +79,6 @@ None yet.
 
 ## Session Continuity
 
-Last session: 2026-04-02
-Stopped at: Roadmap created, STATE.md initialized — ready to run /gsd:plan-phase 1
+Last session: 2026-04-02T10:04:03.486Z
+Stopped at: Completed 01-foundation-01-PLAN.md
 Resume file: None