feat: add API optimizations, cache invalidation and comprehensive test suite

- Add abort controllers and request deduplication to composables
- Add entity type cache invalidation on create/update/delete flows
- Add 179 new tests (utilities, services, composables, components)
- Fix Vue runtime warnings in structure editors

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

app/composables/useMachineDetailData.ts

@@ -1198,6 +1198,11 @@ export function useMachineDetailData(machineId: string) {
       syncMachineCustomFields()
       initMachineFields()
 
+      // Start document loading early (independent of products/links)
+      const documentPromise = !machineDocumentsLoaded.value
+        ? refreshMachineDocuments()
+        : Promise.resolve()
+
       if (!(productInventory.value as AnyRecord[]).length) {
         try {
           await loadProducts()
@@ -1228,9 +1233,8 @@ export function useMachineDetailData(machineId: string) {
 
       collapseAllComponents()
 
-      if (!machineDocumentsLoaded.value) {
-        await refreshMachineDocuments()
-      }
+      // Wait for documents if still loading
+      await documentPromise
     } catch (error) {
       console.error('Erreur lors du chargement des données:', error)
     } finally {
@@ -1238,10 +1242,12 @@ export function useMachineDetailData(machineId: string) {
     }
   }
 
-  const loadInitialData = () => {
-    if (!constructeurs.value.length) loadConstructeurs()
-    if (!componentTypes.value.length) loadComponentTypes()
-    if (!pieceTypes.value.length) loadPieceTypes()
+  const loadInitialData = (): Promise<unknown[]> => {
+    return Promise.all([
+      loadConstructeurs(),
+      loadComponentTypes(),
+      loadPieceTypes(),
+    ])
   }
 
   // ---------------------------------------------------------------------------