Fix to make the volume appear in Finder

It wouldn't appear in Finder until I did this. Written by Claude.

src/main.rs

···
     }
 
     // mount
-    let options = vec![MountOption::RO, MountOption::FSName("pdsfs".to_string())];
+    let options = vec![
+        MountOption::RO,
+        MountOption::FSName("pdsfs".to_string()),
+        MountOption::AllowOther,
+        MountOption::CUSTOM("local".to_string()),
+        MountOption::CUSTOM("volname=pdsfs".to_string()),
+    ];
     let join_handle = fuser::spawn_mount2(fs, &mountpoint, &options).unwrap();
 
     println!("mounted at {mountpoint:?}");