docs(05-02): complete multi-forest navigation plan

- SUMMARY.md: navigation handlers, page persistence, fade animation, reward flow
- STATE.md: advance to ready_for_verification, 100% progress, decisions logged
- ROADMAP.md: Phase 05 marked complete (2/2 plans done)

.planning/STATE.md

@@ -2,15 +2,15 @@
 gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: milestone
-status: executing
-stopped_at: Completed 05-01-PLAN.md
-last_updated: "2026-03-29T21:00:12.800Z"
+status: verifying
+stopped_at: Completed 05-02-PLAN.md
+last_updated: "2026-03-29T21:04:00.840Z"
 last_activity: 2026-03-29
 progress:
   total_phases: 5
-  completed_phases: 4
+  completed_phases: 5
   total_plans: 21
-  completed_plans: 20
+  completed_plans: 21
   percent: 0
 ---
 
@@ -27,7 +27,7 @@ See: .planning/PROJECT.md (updated 2026-03-29)
 
 Phase: 05 (multi-wald-system-wald-pagination-und-navigation-zwischen-w-ldern) — EXECUTING
 Plan: 2 of 2
-Status: Ready to execute
+Status: Phase complete — ready for verification
 Last activity: 2026-03-29
 
 Progress: [░░░░░░░░░░] 0%
@@ -72,6 +72,7 @@ Progress: [░░░░░░░░░░] 0%
 | Phase 04 P01 | 4min | 2 tasks | 9 files |
 | Phase 04 P04 | 1min | 2 tasks | 4 files |
 | Phase 05 P01 | 2min | 2 tasks | 7 files |
+| Phase 05 P02 | 2min | 2 tasks | 3 files |
 
 ## Accumulated Context
 
@@ -114,6 +115,9 @@ Recent decisions affecting current work:
 - [Phase 04]: Audio calls are fire-and-forget at all touch points -- sound/speech modules handle settings checks and errors internally
 - [Phase 05]: renderForestScene owns nav UI update: called after element rendering with totalPages from full element array
 - [Phase 05]: SLOTS_PER_PAGE exported as named constant so Plan 02 can import without duplication
+- [Phase 05]: navigateToPage in initForestScreen reads fresh progress before saving to avoid stale data on navigation
+- [Phase 05]: Zurueck zum Wald computes newPage from elements.length before initForestScreen to always target correct last page
+- [Phase 05]: Fade animation uses grid.style.opacity toggle with requestAnimationFrame for natural transition
 
 ### Pending Todos
 
@@ -142,6 +146,6 @@ None yet.
 
 ## Session Continuity
 
-Last session: 2026-03-29T21:00:12.792Z
-Stopped at: Completed 05-01-PLAN.md
+Last session: 2026-03-29T21:04:00.833Z
+Stopped at: Completed 05-02-PLAN.md
 Resume file: None