refactor(infra): directory structure (#4615)

packages/frontend/native/__tests__/db.spec.mts

@@ -0,0 +1,12 @@
+import test from 'ava';
+import { fileURLToPath } from 'node:url';
+
+import { SqliteConnection, ValidationResult } from '../index';
+
+test('db validate', async t => {
+  const path = fileURLToPath(
+    new URL('./fixtures/test01.affine', import.meta.url)
+  );
+  const result = await SqliteConnection.validate(path);
+  t.is(result, ValidationResult.MissingVersionColumn);
+});