fix: use pnpm run dev instead of npx vite in studio command

Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>

Author: Copilot

packages/cli/src/commands/studio.ts

@@ -47,7 +47,7 @@ export async function studio() {
   console.log(chalk.dim('  Mode:    MSW (in-browser mock server)\n'));
 
   // Delegate to the console's dev script which starts Vite + MSW
-  const child = spawn('npx', ['vite', '--open'], {
+  const child = spawn('pnpm', ['run', 'dev'], {
     cwd: consolePath,
     stdio: 'inherit',
     env: { ...process.env, NODE_ENV: 'development' },