[Subtask] Handle file name encoding and special characters.

[diqiu50]

Describe the subtask

In different client environments, file name encoding and the special characters within them need to be handled to ensure correct file operations and avoid garbled text.

Parent issue

#5504

[featherchen]

@diqiu50 Hi, I am little bit confuse about the meaning of this issue. In my understanding, gvfs fuse operates Data I/O via SDK on different clients, e.g. JuiceFS, Ceph, and NAS. However I am not sure what should we handle in gvfs layer? Doesn't the clients handle this kind of sinario on its own?

[diqiu50]

My current concern is that I am unsure whether our handling of special characters in filenames and various encodings is correct. We need to test this, and if there are no issues, that would be ideal.
It might be too early to test this issue right now.