- Back button in lesson screen to return to forest without completing
- "Alle Stufen geschafft!" message when all 6 levels are done
- Cap currentLevel at MAX_LEVEL to prevent out-of-bounds progression
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Lesson screen HTML with letter-area and keyboard containers
- initLessonScreen: renders keyboard, shows letters, handles keypress
- Correct key dissolves letter with animation, advances to next
- Wrong key does nothing (per D-03), correct key stays highlighted
- startLesson in app.ts: manages lesson lifecycle and cleanup
- onComplete: updates progress, unlocks next level, saves to IndexedDB
- CSS: floating letter animation, dissolve effect on correct press
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Vite 6 + TypeScript + Biome + Vitest configured
- All directories from spec section 13 created
- CSS custom properties for full color palette and finger colors
- index.html with 5 screen sections and Google Fonts
- Dev server binds to 0.0.0.0:5173 for VPS access
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>