refactor(machines) : remove TypeMachine skeleton system, simplify machine creation

- Remove TypeEdit*, TypeInfoDisplay, MachineSkeletonSummary, MachineCreatePreview components
- Remove machine-skeleton pages and type pages
- Remove useMachineTypesApi, useMachineSkeletonEditor, useMachineCreateSelections composables
- Add AddEntityToMachineModal for direct entity linking
- Update machine detail/create pages for direct custom fields
- Fix SearchSelect, category display, and ipartial search filters

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/shared/constructeurUtils.ts

@@ -60,9 +60,8 @@ export const uniqueConstructeurIds = (...sources: unknown[]): string[] => {
       if (value.constructeur) {
         explore(value.constructeur);
       }
-      // Only extract ID if this looks like a constructeur object (has @type or recognizable fields)
-      // Don't extract ID from component/piece/product objects that happen to be passed in
-      if (typeof value.id === 'string' && !value.name && !value.typeComposant && !value.typePiece && !value.typeProduct) {
+      // Extract ID from constructeur-like objects, but skip component/piece/product entities
+      if (typeof value.id === 'string' && !value.typeComposant && !value.typePiece && !value.typeProduct) {
         pushId(value.id);
       }
       return;