Fix path of mesh

Image3DProcessor.py

@@ -114,7 +114,7 @@ class Image3DProcessor:
 
         # Save the mesh as a .ply file and load its content
         mesh_path = "mesh.ply"
-        export_to_obj(reconstruction, mesh_path)
+        export_to_obj(reconstruction, f"/home/user/app/{mesh_path}")
         with open(mesh_path, "rb") as mesh_file:
             mesh_data = mesh_file.read()