- Fix highlighting logic bug where multiple beads in same column would overwrite each other
- Migrate TutorialStep interface from columnIndex to placeValue system
- Update tutorial data to use place values (0=ones, 1=tens, etc.)
- Fix bead validation logic to use place values instead of legacy columnIndex
- Enable proper multi-step tutorial highlighting for complement operations
Tutorial steps like "3 + 4 = 5 - 1" now correctly highlight both the heaven bead
(add 5) and earth bead (remove 1) simultaneously.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
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