refactor(about): 重构关于页面路由为静态路径

将关于页面的查询参数路由改为静态路径结构，如/about/company
更新i18n消息中的链接路径
添加新的[section]页面处理逻辑
优化静态生成参数和错误处理

app/[locale]/product/[slug]/page.tsx

@@ -169,12 +169,12 @@ export async function generateStaticParams() {
   try {
     const defaultLocale = LOCALES[0];
     const { products }: { products: Product[] } = await getProducts(defaultLocale);
-    const validProducts = products.filter((product) => product.slug && product.title);
+    const validProducts = products.filter((product) => product.slug.toString() && product.title);
 
     return LOCALES.flatMap((locale) =>
       validProducts.map((product) => ({
         locale,
-        slug: product.slug,
+        slug: product.slug.toString(),
       }))
     );
   } catch (error) {