message: packages/cli: resolve mjs before js in plugin serve
diff: @@ -38,7 +38,7 @@ export function createConfig(paths: Paths): webpack.Configuration {
  paths.targetDevEntry,
  ],
  resolve: {
  - extensions: ['.ts', '.tsx', '.js', '.jsx'],
  + extensions: ['.ts', '.tsx', '.mjs', '.js', '.jsx'],
  modules: ['node_modules', paths.targetSrc],
  plugins: [
  new ModuleScopePlugin(
  