- Default absent optional config nodes to empty values without hiding other errors
- Normalize empty parent mappings to prevent alias save and rollback conflicts
- Add regression tests for missing config, first-time alias creation, and rollback
- Protect selected models' aliases when generating exclusions
- Reconcile exclusions when editing models and saving mappings
- Preserve manual exclusions and provider disabled state
- Add unit and UI regression tests for alias conflicts
- Separate selected and unselected models with independent search and bulk actions
- Fix selection initialization and ignore stale discovery responses
- Improve keyboard navigation and responsive layouts
- Update translations and add model selection UI regression tests
lzt404