feat: 添加产品中心功能并优化博客系统

- 新增产品中心功能，包括产品列表页和详情页
- 实现产品多语言支持(中文、英文、越南语)
- 重构博客系统，从API获取改为本地MDX文件管理
- 更新favicon为PNG格式并修复相关引用
- 添加产品类型定义和获取逻辑
- 优化首页应用场景图片和链接
- 完善国际化配置和翻译
- 新增产品详情页标签切换组件
- 修复代理配置中的favicon路径问题

lib/getProducts.ts

@@ -0,0 +1,57 @@
+import { DEFAULT_LOCALE } from '@/i18n/routing';
+import { Product } from '@/types/product';
+import fs from 'fs';
+import matter from 'gray-matter';
+import path from 'path';
+
+const POSTS_BATCH_SIZE = 10;
+
+export async function getProducts(locale: string = DEFAULT_LOCALE): Promise<{ products: Product[] }> {
+  const postsDirectory = path.join(process.cwd(), 'content', 'product', locale);
+
+  // is directory exist
+  if (!fs.existsSync(postsDirectory)) {
+    return { products: [] };
+  }
+
+  let filenames = await fs.promises.readdir(postsDirectory);
+  filenames = filenames.reverse();
+
+  let allPosts: Product[] = [];
+
+  // read file by batch
+  for (let i = 0; i < filenames.length; i += POSTS_BATCH_SIZE) {
+    const batchFilenames = filenames.slice(i, i + POSTS_BATCH_SIZE);
+
+    const batchPosts: Product[] = await Promise.all(
+      batchFilenames.map(async (filename) => {
+        const fullPath = path.join(postsDirectory, filename);
+        const fileContents = await fs.promises.readFile(fullPath, 'utf8');
+
+        const { data, content } = matter(fileContents);
+        console.log(data);
+
+        return {
+          locale, // use locale parameter
+          title: data.title,
+          model: data.model,
+          place: data.place,
+          publishedTime: data.publishedTime,
+          images: data.images || [],
+          detail: data.detail,
+          spec: data.spec || [],
+          packaging: data.packaging || '',
+          slug: data.slug || '',
+          content,
+          metadata: data,
+        };
+      })
+    );
+
+    allPosts.push(...batchPosts);
+  }
+
+  return {
+    products: allPosts,
+  };
+}