Drop unused error parameter from apiError

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RaRBJFZKSTA7naHGuQHfnQ

tests/unit/module/apiError.test.js

@@ -0,0 +1,23 @@
+// The Lucia project.
+// Copyright 2026-2026 DSP, inc.  All rights reserved.
+// Authors:
+//   imacat.yang@dsp.im (imacat), 2026/07/04
+// AI assistance: Claude Code (Anthropic)
+
+import { describe, it, expect, vi } from "vitest";
+import apiError from "@/module/apiError.js";
+
+const toastDefault = vi.fn();
+
+vi.mock("vue-toast-notification", () => ({
+  useToast: () => ({ default: toastDefault }),
+}));
+
+describe("apiError", () => {
+  it("shows the message as a toast at the bottom", () => {
+    apiError("some message");
+    expect(toastDefault).toHaveBeenCalledWith("some message", {
+      position: "bottom",
+    });
+  });
+});