test: run ephemeral dir tests sequentially

.vscode/settings.json

@@ -47,6 +47,7 @@
     "desynced",
     "devedition",
     "direnv",
+    "diskutil",
     "distro",
     "dists",
     "DMABUF",
@@ -59,6 +60,7 @@
     "dtolnay",
     "dyld",
     "elif",
+    "erasevolume",
     "errorlevel",
     "esac",
     "esbuild",
@@ -83,6 +85,7 @@
     "idlelib",
     "idletime",
     "idna",
+    "imdisk",
     "infobars",
     "inkey",
     "Inno",
@@ -132,8 +135,10 @@
     "nodecar",
     "NODELAY",
     "nodemon",
+    "nomount",
     "norestart",
     "NSIS",
+    "ntfs",
     "ntlm",
     "numpy",
     "objc",

src-tauri/src/ephemeral_dirs.rs

@@ -283,6 +283,9 @@ mod tests {
   #[test]
   #[serial_test::serial]
   fn test_ephemeral_dir_lifecycle() {
+    // Clear global state to avoid interference from other tests
+    EPHEMERAL_DIRS.lock().unwrap().clear();
+
     let profile_id = uuid::Uuid::new_v4();
     let id_str = profile_id.to_string();