perf(cli): improve cli boot time (#10780)

* chore: test

* perf(cli): improve cli boot time

packages/vant-cli/src/index.ts

@@ -1,30 +1,9 @@
 // @ts-ignore
 import fs from 'fs';
 import { URL, fileURLToPath } from 'url';
-import { dev } from './commands/dev.js';
-import { lint } from './commands/lint.js';
-import { test } from './commands/jest.js';
-import { clean } from './commands/clean.js';
-import { build } from './commands/build.js';
-import { release } from './commands/release.js';
-import { changelog } from './commands/changelog.js';
-import { buildSite } from './commands/build-site.js';
-import { commitLint } from './commands/commit-lint.js';
 
 const packagePath = fileURLToPath(new URL('../package.json', import.meta.url));
 const packageJson = JSON.parse(fs.readFileSync(packagePath, 'utf-8'));
 export const cliVersion: string = packageJson.version;
 
 process.env.VANT_CLI_VERSION = cliVersion;
-
-export {
-  dev,
-  lint,
-  test,
-  clean,
-  build,
-  release,
-  changelog,
-  buildSite,
-  commitLint,
-};