docs(state): record phase 05 context session

.planning/STATE.md

@@ -2,16 +2,16 @@
 gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: milestone
-status: executing
-stopped_at: Phase 04 complete, ready for Phase 05
-last_updated: "2026-06-23T09:03:59.869Z"
-last_activity: 2026-06-23 -- Phase 04 completed (marketplace + portal navigation)
+status: completed
+stopped_at: Phase 05 context gathered
+last_updated: "2026-06-23T12:01:18.176Z"
+last_activity: 2026-06-23 -- Plan 04-03 completed (sidebar enhancement)
 progress:
   total_phases: 6
-  completed_phases: 2
+  completed_phases: 3
   total_plans: 16
-  completed_plans: 14
-  percent: 33
+  completed_plans: 15
+  percent: 50
 ---
 
 # Project State
@@ -93,6 +93,6 @@ Items acknowledged and carried forward from previous milestone close:
 
 ## Session Continuity
 
-Last session: 2026-06-23T09:03:59.861Z
-Stopped at: context exhaustion at 75% (2026-06-23)
-Resume file: .planning/phases/04-marketplace-portal-navigation/04-04-PLAN.md
+Last session: 2026-06-23T12:01:18.169Z
+Stopped at: Phase 05 context gathered
+Resume file: .planning/phases/05-dashboard-calendar/05-CONTEXT.md