Complete context file with:
- Full development history (v1.5 → v1.9.1)
- All technical details and architecture
- Security issues and fixes
- Hardware specifications and pinout
- Current device configuration
- Next steps (Home Assistant integration)
- Key learnings from project
- Quick reference commands
This file serves as complete knowledge base for:
- Resuming work after long breaks
- Onboarding new contributors
- Understanding project evolution
- Reference for future features
