- Move guest-agents from hypervisor modifier to independent optional feature
- Merge guest-agents/gui.ks into base.ks
- Remove security from required, add optional security modifier with off option
- Fix hypervisor-type modifier key normalization (underscore→hyphen)
- Add expand_variants() to handle list values in manifest
- Update all tests and expected recipes
- Replaced individual templates with unified 'install' (desktop, server, hypervisor) and 'live' (live-desktop, live-server) templates
- Added new modifiers: variant_type, hypervisor-type, desktop, initial-setup, virtualization
- Updated generate_recipe.py to handle new modifier structure with additive flags
- Updated recipes_manifest.yaml with new modifier structure
- Added missing fragment files and directories