feat: add CreateDirectory endpoint and S3 directory marker support

Signed-off-by: Noooste <83548733+Noooste@users.noreply.github.com>

frontend/src/hooks/useBucketObjects.ts

@@ -182,7 +182,7 @@ export function useBucketObjects(bucketName: string | null, currentPath: string
 
     try {
       const dirKey = currentPath ? `${currentPath}${dirName}/` : `${dirName}/`;
-      await objectsApi.upload(bucketName, dirKey, new File([], '.keep'));
+      await objectsApi.createDirectory(bucketName, dirKey);
       toast.success(`Directory "${dirName}" created successfully`);
       await fetchObjects(currentContinuationToken, true);
       return true;

frontend/src/lib/api.ts

@@ -276,6 +276,10 @@ export const objectsApi = {
     };
   },
 
+  createDirectory: async (bucket: string, key: string): Promise<void> => {
+    await api.post(`/v1/buckets/${bucket}/directories`, { key });
+  },
+
   upload: async (bucket: string, key: string, file: File, onProgress?: (progress: number) => void): Promise<void> => {
     const formData = new FormData();
     formData.append('file', file);