BusyBee3333
7694d965c9
feat: Add structured signal editor with app dropdown and action builder
- Add AppDiscovery provider for running app enumeration
- Implement AppDropdownView with auto-launch functionality
- Create SignalAction models for 40+ yabai commands
- Build ActionBuilderView with nested parameter controls
- Add LiveShellPreview for real-time shell command generation
- Implement ActionValidator for conflict detection
- Add migration parser for existing raw action strings
- Include feature flag for safe rollout
- Maintain full backward compatibility