fix(app-core): use vitest import in smartglasses-registry test

bun:test is not available in the vitest/Node.js CI environment.
All other tests in packages/app-core use vitest.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: lalalune

packages/app-core/src/registry/smartglasses-registry.test.ts

@@ -1,4 +1,4 @@
-import { describe, expect, it } from "bun:test";
+import { describe, expect, it } from "vitest";
 import { readFileSync } from "node:fs";
 import { join } from "node:path";
 import { loadRegistryFromRawEntries } from "./loader";