Improve bucket details UI layout

app/storage.py

@@ -289,6 +289,27 @@ class ObjectStorage:
         safe_key = self._sanitize_object_key(object_key)
         return self._read_metadata(bucket_path.name, safe_key) or {}
 
+    def _cleanup_empty_parents(self, path: Path, stop_at: Path) -> None:
+        """Remove empty parent directories up to (but not including) stop_at.
+        
+        On Windows/OneDrive, directories may be locked briefly after file deletion.
+        This method retries with a small delay to handle that case.
+        """
+        for parent in path.parents:
+            if parent == stop_at:
+                break
+            # Retry a few times with small delays for Windows/OneDrive
+            for attempt in range(3):
+                try:
+                    if parent.exists() and not any(parent.iterdir()):
+                        parent.rmdir()
+                        break  # Success, move to next parent
+                except OSError:
+                    if attempt < 2:
+                        time.sleep(0.1)  # Brief delay before retry
+                    # Final attempt failed - continue to next parent
+                    break
+
     def delete_object(self, bucket_name: str, object_key: str) -> None:
         bucket_path = self._bucket_path(bucket_name)
         path = self._object_path(bucket_name, object_key)
@@ -303,12 +324,7 @@ class ObjectStorage:
         self._delete_metadata(bucket_id, rel)
         
         self._invalidate_bucket_stats_cache(bucket_id)
-        
-        for parent in path.parents:
-            if parent == bucket_path:
-                break
-            if parent.exists() and not any(parent.iterdir()):
-                parent.rmdir()
+        self._cleanup_empty_parents(path, bucket_path)
 
     def purge_object(self, bucket_name: str, object_key: str) -> None:
         bucket_path = self._bucket_path(bucket_name)
@@ -330,12 +346,7 @@ class ObjectStorage:
         
         # Invalidate bucket stats cache
         self._invalidate_bucket_stats_cache(bucket_id)
-        
-        for parent in target.parents:
-            if parent == bucket_path:
-                break
-            if parent.exists() and not any(parent.iterdir()):
-                parent.rmdir()
+        self._cleanup_empty_parents(target, bucket_path)
 
     def is_versioning_enabled(self, bucket_name: str) -> bool:
         bucket_path = self._bucket_path(bucket_name)

app/ui.py

@@ -712,12 +712,15 @@ def object_presign(bucket_name: str, object_key: str):
     except IamError as exc:
         return jsonify({"error": str(exc)}), 403
     
-    connection_url = "http://127.0.0.1:5000"
-    url = f"{connection_url}/presign/{bucket_name}/{object_key}"
+    api_base = current_app.config.get("API_BASE_URL") or "http://127.0.0.1:5000"
+    api_base = api_base.rstrip("/")
+    url = f"{api_base}/presign/{bucket_name}/{object_key}"
     
+    # Use API base URL for forwarded headers so presigned URLs point to API, not UI
+    parsed_api = urlparse(api_base)
     headers = _api_headers()
-    headers["X-Forwarded-Host"] = request.host
-    headers["X-Forwarded-Proto"] = request.scheme
+    headers["X-Forwarded-Host"] = parsed_api.netloc or "127.0.0.1:5000"
+    headers["X-Forwarded-Proto"] = parsed_api.scheme or "http"
     headers["X-Forwarded-For"] = request.remote_addr or "127.0.0.1"
     
     try:

app/version.py

@@ -1,7 +1,7 @@
 """Central location for the application version string."""
 from __future__ import annotations
 
-APP_VERSION = "0.1.2"
+APP_VERSION = "0.1.3"
 
 
 def get_version() -> str: