fix: Bugs created after the overhaul, performance and layout fixes

backend/crm/nextcloud.py

@@ -312,3 +312,18 @@ async def delete_file(relative_path: str) -> None:
     resp = await client.request("DELETE", url, auth=_auth())
     if resp.status_code not in (200, 204, 404):
         raise HTTPException(status_code=502, detail=f"Nextcloud delete failed: {resp.status_code}")
+
+
+async def rename_folder(old_relative_path: str, new_relative_path: str) -> None:
+    """Rename/move a folder in Nextcloud using WebDAV MOVE."""
+    url = _full_url(old_relative_path)
+    destination = _full_url(new_relative_path)
+    client = _get_client()
+    resp = await client.request(
+        "MOVE",
+        url,
+        auth=_auth(),
+        headers={"Destination": destination, "Overwrite": "F"},
+    )
+    if resp.status_code not in (201, 204):
+        raise HTTPException(status_code=502, detail=f"Nextcloud rename failed: {resp.status_code}")