docs(18-04): complete admin timezone UI plan

.planning/STATE.md

@@ -2,16 +2,16 @@
 gsd_state_version: 1.0
 milestone: v1.1
 milestone_name: Operability & Polish
-status: executing
+status: verifying
 stopped_at: Phase 18 Plan 03 complete — broker rewire done; plan 4 of 4 is next
-last_updated: "2026-06-15T02:33:25.687Z"
+last_updated: "2026-06-15T02:46:09.819Z"
 last_activity: 2026-06-15
 progress:
   total_phases: 23
-  completed_phases: 9
+  completed_phases: 10
   total_plans: 36
-  completed_plans: 35
-  percent: 39
+  completed_plans: 36
+  percent: 43
 ---
 
 # Project State
@@ -27,7 +27,7 @@ See: .planning/PROJECT.md (updated 2026-06-10)
 
 Phase: 18 (auto-timezone-detection-and-ability-to-change-timezone) — EXECUTING
 Plan: 4 of 4
-Status: Ready to execute
+Status: Phase complete — ready for verification
 Last activity: 2026-06-15
 
 ### ✅ Resolved Checkpoint — Phase 15 Plan 15-03 Task 2 (human-action)
@@ -110,6 +110,7 @@ _Updated after each plan completion_
 | Phase 18-auto-timezone-detection-and-ability-to-change-timezone P01 | 2 | 2 tasks | 2 files |
 | Phase 18 P02 | 3 | 2 tasks | 2 files |
 | Phase 18 P03 | 28 | 2 tasks | 4 files |
+| Phase 18 P04 | 15 | 3 tasks | 3 files |
 
 ## Accumulated Context
 
@@ -256,7 +257,7 @@ Recent decisions affecting current work:
 
 ## Session Continuity
 
-Last session: 2026-06-15T02:33:25.669Z
+Last session: 2026-06-15T02:46:09.800Z
 Stopped at: Phase 18 Plan 03 complete — broker rewire done; plan 4 of 4 is next
 Resume file: None