Major architectural refactor:
- Convert invcount and conssheets to self-contained modules
- Add Module Manager with upload/install/uninstall
- Implement auto-restart after module installation
- Add drag-and-drop module upload system
- Create triple-confirmation uninstall flow
- Redesign Module Manager UI with card layout
- Support dynamic module loading from /modules/
This enables easy distribution and installation of new modules
without code changes to core application.
- Convert invcount to self-contained module
- Add Module Manager for install/uninstall
- Create module_registry database table
- Support hot-reloading of modules
- Move data imports into invcount module
- Update all templates and routes to new structure
Version bumped to 0.16.0
