Extract assignment normalization utils to shared/utils/assignmentUtils.ts.
Extract selection state management to composables/useMachineCreateSelections.ts.
Extract preview computation and validation to composables/useMachineCreatePreview.ts.
Wire machines/new.vue to use extracted modules (-47% LOC).
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- introduce product catalogue pages, management view entries and shared product composables\n- wire product selection into component/piece flows and machine skeleton requirements\n- display linked product metadata and documents across machine, component and piece views\n- generalize model type tooling to handle PRODUCT category
