docs(04-03): complete Export/Import/Reset plan

- SUMMARY.md with plan results and decisions
- STATE.md updated with progress and metrics
- ROADMAP.md and REQUIREMENTS.md updated

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.planning/REQUIREMENTS.md

@@ -93,9 +93,9 @@ Requirements for initial release (MVP). Each maps to roadmap phases.
 - [x] **PRNT-02**: Übersicht: Aktuelle Stufe, abgeschlossene Einheiten, Übungstage (Kalender-Dots)
 - [x] **PRNT-03**: Statistik: Durchschnittliche Genauigkeit, häufigste Fehlertasten (nur hier sichtbar)
 - [x] **PRNT-04**: Einstellungen: Layout-Wechsel, Audio an/aus, Begleitfigur wechseln, API-Key
-- [ ] **PRNT-05**: Export: Fortschritt als JSON (ohne Blobs)
+- [x] **PRNT-05**: Export: Fortschritt als JSON (ohne Blobs)
-- [ ] **PRNT-06**: Import: JSON hochladen mit Validierung
+- [x] **PRNT-06**: Import: JSON hochladen mit Validierung
-- [ ] **PRNT-07**: Reset: Alles löschen mit doppelter Bestätigung
+- [x] **PRNT-07**: Reset: Alles löschen mit doppelter Bestätigung
 
 ### Audio
 
@@ -214,9 +214,9 @@ Which phases cover which requirements. Updated during roadmap creation.
 | PLSH-03 | Phase 4 | Complete |
 | PLSH-04 | Phase 4 | Complete |
 | PLSH-05 | Phase 4 | Complete |
-| PRNT-05 | Phase 4 | Pending |
+| PRNT-05 | Phase 4 | Complete |
-| PRNT-06 | Phase 4 | Pending |
+| PRNT-06 | Phase 4 | Complete |
-| PRNT-07 | Phase 4 | Pending |
+| PRNT-07 | Phase 4 | Complete |
 
 **Coverage:**
 - v1 requirements: 68 total

.planning/STATE.md

@@ -3,8 +3,8 @@ gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: milestone
 status: executing
-stopped_at: Completed 04-02-PLAN.md
+stopped_at: Completed 04-03-PLAN.md
-last_updated: "2026-03-29T16:17:26.933Z"
+last_updated: "2026-03-29T16:17:42.908Z"
 last_activity: 2026-03-29
 progress:
   total_phases: 4
@@ -26,7 +26,7 @@ See: .planning/PROJECT.md (updated 2026-03-29)
 ## Current Position
 
 Phase: 04 (polish-audio) — EXECUTING
-Plan: 2 of 4
+Plan: 3 of 4
 Status: Ready to execute
 Last activity: 2026-03-29
 
@@ -68,6 +68,7 @@ Progress: [░░░░░░░░░░] 0%
 | Phase 03 P02 | 4min | 2 tasks | 6 files |
 | Phase 03 P04 | 3min | 2 tasks | 4 files |
 | Phase 04 P02 | 2min | 2 tasks | 3 files |
+| Phase 04 P03 | 2min | 2 tasks | 3 files |
 
 ## Accumulated Context
 
@@ -104,6 +105,7 @@ Recent decisions affecting current work:
 - [Phase 03]: Progress migration function ensures backward compat with older IndexedDB data
 - [Phase 04]: Stardust particles use box-shadow on pseudo-elements for 6 total sparkle points
 - [Phase 04]: Error overlay uses tree emoji and German child-friendly message
+- [Phase 04]: Export excludes Blobs (only progress+settings) for JSON portability
 
 ### Pending Todos
 
@@ -115,6 +117,6 @@ None yet.
 
 ## Session Continuity
 
-Last session: 2026-03-29T16:17:26.927Z
+Last session: 2026-03-29T16:17:42.902Z
-Stopped at: Completed 04-02-PLAN.md
+Stopped at: Completed 04-03-PLAN.md
 Resume file: None

.planning/phases/04-polish-audio/04-03-SUMMARY.md

@@ -0,0 +1,96 @@
+---
+phase: 04-polish-audio
+plan: 03
+subsystem: ui
+tags: [indexeddb, export, import, reset, parent-area, json]
+
+# Dependency graph
+requires:
+  - phase: 03-gameplay
+    provides: Parent area with stats and settings UI
+provides:
+  - Export progress+settings as JSON download
+  - Import JSON backup with validation and confirmation
+  - Reset all IndexedDB data with double confirmation
+affects: []
+
+# Tech tracking
+tech-stack:
+  added: []
+  patterns: [JSON export via Blob+ObjectURL, file import via hidden input, double-confirm destructive actions]
+
+key-files:
+  created: []
+  modified:
+    - index.html
+    - src/styles/main.css
+    - src/ui/parent.ts
+
+key-decisions:
+  - "Export excludes Blobs (companion assets, style reference, forest images) - only progress+settings for portability"
+  - "Import validates required fields before overwrite confirmation to prevent data corruption"
+  - "Reset clears all 5 IndexedDB stores with double confirmation for safety"
+
+patterns-established:
+  - "Destructive actions use double confirm() dialogs"
+  - "Data feedback uses temporary inline message with auto-hide"
+
+requirements-completed: [PRNT-05, PRNT-06, PRNT-07]
+
+# Metrics
+duration: 2min
+completed: 2026-03-29
+---
+
+# Phase 04 Plan 03: Export/Import/Reset Summary
+
+**Parent area data management: JSON export/import for backup and full IndexedDB reset with double confirmation**
+
+## Performance
+
+- **Duration:** 2 min
+- **Started:** 2026-03-29T16:14:42Z
+- **Completed:** 2026-03-29T16:17:05Z
+- **Tasks:** 2
+- **Files modified:** 3
+
+## Accomplishments
+- Daten section with three action buttons in parent area HTML
+- Export downloads zauberwald-backup.json with progress and settings (no Blobs)
+- Import validates JSON structure, confirms overwrite, saves and reloads
+- Reset clears all 5 IndexedDB stores after two confirmation dialogs
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: HTML Daten-Section + Export/Import/Reset buttons** - `5396dc0` (feat)
+2. **Task 2: Export/Import/Reset logic in parent.ts** - `7931f7e` (feat)
+
+## Files Created/Modified
+- `index.html` - Added Daten section with export/import/reset buttons and hidden file input
+- `src/styles/main.css` - Added styles for action buttons including danger variant
+- `src/ui/parent.ts` - Added exportData, importData, resetAllData functions with button wiring
+
+## Decisions Made
+- Export excludes Blobs (only progress+settings) for JSON portability and small file size
+- Import validates required fields (currentLevel, completedLevels, totalSessions, selectedCharacter, selectedLayout, audioEnabled) before prompting overwrite
+- Reset clears all 5 stores (progress, companionAssets, styleReference, forestElements, settings) then reloads
+
+## Deviations from Plan
+
+None - plan executed exactly as written.
+
+## Issues Encountered
+None
+
+## User Setup Required
+None - no external service configuration required.
+
+## Next Phase Readiness
+- Data management complete, parent area fully functional with stats, settings, and data backup/restore
+- No blockers for remaining phase 04 plans
+
+---
+*Phase: 04-polish-audio*
+*Completed: 2026-03-29*