Ensure SSH private key has correct permissions during refresh (#266)

Ensure SSH private key has correct permissions (0600) during refresh

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: Alec Fong <alecsanf@usc.edu>

Author: devin-ai-integration[bot]

pkg/cmd/refresh/refresh.go

@@ -72,6 +72,15 @@ func RunRefreshBetter(store RefreshStore) error {
 		return breverrors.WrapAndTrace(err)
 	}
 
+	privateKeyPath, err := store.GetPrivateKeyPath()
+	if err != nil {
+		return breverrors.WrapAndTrace(err)
+	}
+	err = store.Chmod(privateKeyPath, 0o600)
+	if err != nil {
+		return breverrors.WrapAndTrace(err)
+	}
+
 	return nil
 }
 
@@ -92,6 +101,15 @@ func RunRefresh(store RefreshStore) error {
 		return breverrors.WrapAndTrace(err)
 	}
 
+	privateKeyPath, err := store.GetPrivateKeyPath()
+	if err != nil {
+		return breverrors.WrapAndTrace(err)
+	}
+	err = store.Chmod(privateKeyPath, 0o600)
+	if err != nil {
+		return breverrors.WrapAndTrace(err)
+	}
+
 	return nil
 }