refactor: use resource identifiers

Signed-off-by: Sebastian Krupinski <krupinski01@gmail.com>

src/services/collectionService.ts

@@ -72,9 +72,16 @@ export const collectionService = {
    * 
    * @returns Promise with collection object
    */
-  async fetch(request: CollectionFetchRequest): Promise<CollectionObject> {
+  async fetch(request: CollectionFetchRequest): Promise<Record<string, CollectionObject>> {
     const response = await transceivePost<CollectionFetchRequest, CollectionFetchResponse>('collection.fetch', request);
-    return createCollectionObject(response);
+    
+    // Convert response to CollectionObject instances
+    const list: Record<string, CollectionObject> = {};
+    Object.entries(response).forEach(([identifier, entity]) => {
+      list[entity.identifier] = createCollectionObject(entity);
+    });
+
+    return list;
   },
 
   /**
@@ -128,8 +135,8 @@ export const collectionService = {
   async delete(request: CollectionDeleteRequest): Promise<boolean | CollectionObject> {
     const response = await transceivePost<CollectionDeleteRequest, CollectionDeleteResponse>('collection.delete', request);
 
-    if (response.outcome === 'moved' && response.data) {
-      return createCollectionObject(response.data);
+    if (response.disposition === 'moved' && response.mutation) {
+      return createCollectionObject(response.mutation);
     }
 
     return true;