feat(email): add persistent smartmta storage and runtime-managed email domain syncing

test/test.smartmta-storage-manager.node.ts

@@ -0,0 +1,31 @@
+import { tap, expect } from '@git.zone/tstest/tapbundle';
+import * as plugins from '../ts/plugins.js';
+import { SmartMtaStorageManager } from '../ts/email/index.js';
+
+const tempDir = plugins.path.join(process.cwd(), '.nogit', 'test-smartmta-storage');
+
+tap.test('SmartMtaStorageManager persists, lists, and deletes keys', async () => {
+  await plugins.fs.promises.rm(tempDir, { recursive: true, force: true });
+
+  const storageManager = new SmartMtaStorageManager(tempDir);
+  await storageManager.set('/email/dkim/example.com/default/metadata', 'metadata');
+  await storageManager.set('/email/dkim/example.com/default/public.key', 'public');
+
+  expect(await storageManager.get('/email/dkim/example.com/default/metadata')).toEqual('metadata');
+
+  const keys = await storageManager.list('/email/dkim/example.com/');
+  expect(keys).toEqual([
+    '/email/dkim/example.com/default/metadata',
+    '/email/dkim/example.com/default/public.key',
+  ]);
+
+  await storageManager.delete('/email/dkim/example.com/default/metadata');
+  expect(await storageManager.get('/email/dkim/example.com/default/metadata')).toBeNull();
+});
+
+tap.test('cleanup', async () => {
+  await plugins.fs.promises.rm(tempDir, { recursive: true, force: true });
+  await tap.stopForcefully();
+});
+
+export default tap.start();