Extract three complex inline components into separate files:
- ThreadLegend: Thread color display with metadata (52 lines extracted)
- PatternPositionIndicator: Position/rotation display with locked state (49 lines extracted)
- ZoomControls: Zoom and pan control buttons (41 lines extracted)
Benefits:
- Reduced PatternCanvas.tsx from 730 to 608 lines (-122 lines)
- Cleaner component separation and reusability
- Better testability for individual UI components
- Removed unused icon imports (PlusIcon, MinusIcon, etc.)
- Single responsibility per component
Total refactoring impact (Phase 1+2):
- Before: 786 lines in single file
- After: 608 lines main + 3 focused components
- Reduction: -178 lines of complex inline code
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
