Fix catalogue loading

src/objectList.vue

@@ -119,9 +119,9 @@ let projectStateObject = undefined;
 
 async function loadCataloguesFromConfig(config) {
   const configJson = JSON.parse(JSON.stringify(config));
-  const catalogues = configJson.objectCatalogues;
+  const catalogues = Object.values(configJson.objectCatalogues);
 
-  for (let cat of catalogues) {
+  for (const cat of catalogues) {
     const catJson = await retrieveCatalogueJson(cat.url);
     if (!catJson) continue;
 
@@ -146,11 +146,15 @@ async function retrieveCatalogueJson(link) {
   try {
     const response = await fetch(link, { signal: controller.signal });
     if (!response.ok) {
-      throw new Error(`HTTP error: ${response.status} for catalogue ${link}`);
+      throw new Error(`HTTP error ${response.status} for ${link}`);
     }
     return await response.json();
   } catch (error) {
-    console.error(error);
+    if (error.name === 'AbortError') {
+      console.warn(`Fetch aborted (timeout) for: ${link}`);
+    } else {
+      console.error(`Fetch failed for ${link}:`, error);
+    }
     return null;
   } finally {
     clearTimeout(timeout);
@@ -160,24 +164,38 @@ async function retrieveCatalogueJson(link) {
 function getCatalogueEntries(json, linkPrefix) {
   const part = {};
 
-  for (let item of json.items) {
-    const subCat = item.title;
+
+    if (!json || !Array.isArray(json.items)) {
+      console.warn('Invalid or missing `json.items`:', json);
+      return part;
+    }
+
+    for (const item of json.items) {
+      const subCat = item.title || 'Unnamed';
       const entries = [];
 
-    for (let entry of item.predefinedObjects) {
-      const info = {
-        title: entry.title,
-        icon: linkPrefix + entry.icon,
-        model: linkPrefix + entry.properties?.olcs_modelUrl,
-      };
-      entries.push(info);
+      if (Array.isArray(item.predefinedObjects)) {
+        for (const entry of item.predefinedObjects) {
+          if (typeof entry !== 'object' || entry === null) {
+            console.warn('Invalid entry:', entry);
+            continue;
           }
 
-    part[subCat.toString()] = entries;
+          const title = entry.title || 'Untitled';
+          const icon = linkPrefix + (entry.icon || '');
+          const model = linkPrefix + (entry.properties?.olcs_modelUrl || '');
+
+          entries.push({ title, icon, model });
+        }
+      } else {
+        console.warn('Expected array for predefinedObjects, got:', item.predefinedObjects);
+      }
+
+      part[subCat] = entries;
     }
 
     return part;
-}
+  }
 
 function uploadModel() {
   // Create an input element