- Refactored BootSequence to config-driven architecture with type-safe line components
- Added cursor position capture and smooth cursor-to-dot morph transition
- Rebuilt ECGAnimation with mask-based text reveal technique
- Implemented connector lines between letters with per-character profiles
- ECG trace now starts from cursor position (no teleport)
- Added prefers-reduced-motion support for both phases
- Updated App.tsx to pass cursor position between components
Quality checks: typecheck ✓, lint ✓, build ✓
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