NumericKeypad improvements:
- Fixed position: bottom bar in portrait, right panel in landscape
- Uses react-simple-keyboard with key-like styling (raised, press effect)
- Persists once shown even if physical keyboard detected
Skill detection refactoring:
- Unified all skill analysis through generateUnifiedInstructionSequence
- Removed ~210 lines of dead column-based analysis code
- Added cascading carry/borrow detection for consecutive ten complements
- Ported test cases from columnAnalysis.test.ts to skillDetection.test.ts
abacus-react:
- Added server-side compatible static exports
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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