fix(auth): propagate error when token directory cannot be created

.changeset/fix-token-dir-error-propagation.md

@@ -0,0 +1,5 @@
+---
+"gws": patch
+---
+
+Fix auth error propagation: properly propagate errors when token directory creation or permission setting fails, instead of silently ignoring them

src/token_storage.rs

@@ -82,11 +82,30 @@ impl EncryptedTokenStorage {
         let encrypted = crate::credential_store::encrypt(json.as_bytes())?;
 
         if let Some(parent) = self.file_path.parent() {
-            let _ = tokio::fs::create_dir_all(parent).await;
+            tokio::fs::create_dir_all(parent).await.map_err(|e| {
+                anyhow::anyhow!(
+                    "Failed to create token directory '{}': {}",
+                    sanitize_for_terminal(&parent.display().to_string()),
+                    e
+                )
+            })?;
             #[cfg(unix)]
             {
                 use std::os::unix::fs::PermissionsExt;
-                let _ = std::fs::set_permissions(parent, std::fs::Permissions::from_mode(0o700));
+                let parent_path = parent.to_path_buf();
+                let parent_display = parent.display().to_string();
+                tokio::task::spawn_blocking(move || {
+                    std::fs::set_permissions(&parent_path, std::fs::Permissions::from_mode(0o700))
+                })
+                .await
+                .map_err(|join_err| anyhow::anyhow!("Failed to run set_permissions task: {join_err}"))?
+                .map_err(|io_err| {
+                    anyhow::anyhow!(
+                        "Failed to set permissions on token directory '{}': {}",
+                        sanitize_for_terminal(&parent_display),
+                        io_err
+                    )
+                })?;
             }
         }