docs: add guide for assets report page (#3910)

Author: chenjiahan

website/docs/en/guide/basic/server.mdx

@@ -16,6 +16,18 @@ export default {
 };
 ```
 
+## View Static Assets
+
+After starting the dev server, you can access `/rsbuild-dev-server` to view all static assets generated during this build.
+
+For example, open `http://localhost:3000/rsbuild-dev-server` in the browser, you will see:
+
+<img
+  src="https://assets.rspack.dev/rsbuild/assets/assets-report-page.png"
+  alt="rsbuild-dev-server"
+  width="600"
+/>
+
 ## Page Routing
 
 Rsbuild Server offers a set of default routing convention, and allows users to customize it through configurations.

website/docs/zh/guide/basic/server.mdx

@@ -16,6 +16,18 @@ export default {
 };
 ```
 
+## 查看静态资源
+
+启动 dev server 后，你可以访问 `/rsbuild-dev-server` 查看 Rsbuild 在本次构建中生成的所有静态资源。
+
+例如，在浏览器中打开 `http://localhost:3000/rsbuild-dev-server`，可以看到：
+
+<img
+  src="https://assets.rspack.dev/rsbuild/assets/assets-report-page.png"
+  alt="rsbuild-dev-server"
+  width="600"
+/>
+
 ## 页面路由
 
 Rsbuild 的 Server 提供一套默认的路由约定，并允许用户通过配置项定制。