Major features added:
- Flask-based web server with modular architecture
- Inventory management with metadata and attachments
- POS system with stock tracking and PDF receipts
- Lending system with borrower tracking
- GUI launcher for easy program access
- Comprehensive test suite
- Modern responsive UI with custom dropdowns
- Cross-platform support with shell scripts

Shelved for next version:
- Label generator (entity loading issues)
- Advanced features (auth, containers, location mapping)

Ready for merge to main branch.