persistence for ssh keys

src-tauri/src/errors.rs

@@ -277,6 +277,8 @@ pub enum SaveCredentialsError {
     NotPersistent,
     #[error("A credential with that name already exists")]
     Duplicate,
+    #[error("Failed to save credentials: {0}")]
+    Encode(#[from] ssh_key::Error),
     // rekeying is fundamentally a save operation,
     // but involves loading in order to re-save
     #[error(transparent)]