docs(routing): document catch-all / wildcard (*path) routes

docs_src/src/pages/documentation/en/api_reference/advanced_routing.mdx

@@ -139,6 +139,35 @@ The parameter injection system works in two phases:
   </Col>
 </Row>
 
+### Catch-all (wildcard) routes
+
+<Row>
+  <Col>
+    A `*name` segment is a **catch-all**: unlike `:name` (which matches a single
+    path segment), it matches the **rest of the path**, including multiple
+    `/`-separated levels. The captured remainder is available in
+    `request.path_params` under that name.
+
+    This is useful for single-page-app fallbacks, API gateways/proxies, and
+    serving nested file paths.
+  </Col>
+  <Col sticky>
+    <CodeGroup title="Catch-all routes">
+    ```python
+    @app.get("/files/*path")
+    async def read_file(request):
+        # GET /files/img/2024/logo.png  ->  path == "img/2024/logo.png"
+        return {"path": request.path_params["path"]}
+
+    # SPA fallback: handle any unmatched sub-path under /app
+    @app.get("/app/*path")
+    async def spa(request):
+        return {"route": request.path_params["path"]}
+    ```
+    </CodeGroup>
+  </Col>
+</Row>
+
 ### Route Constraints and Validation
 
 <Row>

docs_src/src/pages/documentation/zh/api_reference/advanced_routing.mdx

@@ -139,6 +139,31 @@ Robyn 会自动分析你的函数签名并注入合适的请求组件。这消
   </Col>
 </Row>
 
+### 通配符（catch-all）路由
+
+<Row>
+  <Col>
+    `*name` 段是一个**通配符（catch-all）**：与只匹配单个路径段的 `:name` 不同，它会匹配**路径的其余部分**，包括多个以 `/` 分隔的层级。捕获到的剩余部分可通过 `request.path_params` 以该名称获取。
+
+    这对于单页应用（SPA）回退、API 网关 / 代理以及服务嵌套文件路径都很有用。
+  </Col>
+  <Col sticky>
+    <CodeGroup title="通配符路由">
+    ```python
+    @app.get("/files/*path")
+    async def read_file(request):
+        # GET /files/img/2024/logo.png  ->  path == "img/2024/logo.png"
+        return {"path": request.path_params["path"]}
+
+    # SPA 回退：处理 /app 下任意未匹配的子路径
+    @app.get("/app/*path")
+    async def spa(request):
+        return {"route": request.path_params["path"]}
+    ```
+    </CodeGroup>
+  </Col>
+</Row>
+
 ### 路由约束与验证
 
 <Row>