Why wasn't the remoteEntry file generated when start dev server

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I used the rsbuild example from the official website, but it did not generate remoteEntry.js in the development environment. although it was generated in the production environment.

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My rsbuild config

import { ModuleFederationPlugin } from "@module-federation/enhanced/rspack";
import { defineConfig } from '@rsbuild/core';
import { pluginReact } from '@rsbuild/plugin-react';

export default defineConfig({
  server: {
    port: 3000,
  },
  dev: {
    assetPrefix: 'http://localhost:3000',
  },
  tools: {
    rspack: (config, { appendPlugins }) => {
      appendPlugins([
        new ModuleFederationPlugin({
          name: 'federation_provider',
          filename: 'remoteEntry.js',
          shared: ['react', 'react-dom'],
          exposes: {
            './App': './src/App',
          }
        }),
      ]);
    },
  },
  plugins: [pluginReact()],
});