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

content/product/en/1.mdx

@@ -0,0 +1,15 @@
+---
+title: Hot-dip Galvanized Steel
+model: DX51D/DX52D/DX53D/S220GD/S250GD/S280GD/S320GD/S320GD/S350GD
+place: Jiaxiang Kelunpu Heavy Industry Co., Ltd.
+publishedTime: 2023-08-01
+images: 
+  - http://kelunpuzhonggong.com/upload/20251102082125.jpg
+detail: Textured/Non-textured
+spec: 
+  - Nominal thickness: 0.6-6.0
+  - Nominal width: 800-1250
+  - Inner diameter of steel coil: 610
+packaging: Single coil
+slug: 1
+---

content/product/en/2.mdx

@@ -0,0 +1,15 @@
+---
+title: Cold Rolled Steel
+model: DC01/DC03/DC04
+place: Jiaxiang Kelunpu Heavy Industry Co., Ltd.
+publishedTime: 2025-10-21
+images: 
+  - http://kelunpuzhonggong.com/upload/20251021161717.jpg
+detail: 
+spec: 
+  - Nominal thickness: 0.16-3.0
+  - Nominal width: 800-1250
+  - Inner diameter of steel coil: 610
+packaging: 
+slug: 2
+---

content/product/en/3.mdx

@@ -0,0 +1,15 @@
+---
+title: Hot Rolled Steel
+model: DC01/DC03/DC04
+place: Jiaxiang Kelunpu Heavy Industry Co., Ltd.
+publishedTime: 2025-10-21
+images: 
+  - http://kelunpuzhonggong.com/upload/20251021161717.jpg
+detail: 
+spec: 
+  - Nominal thickness: 0.16-3.0
+  - Nominal width: 800-1250
+  - Inner diameter of steel coil: 610
+packaging: 
+slug: 3
+---

content/product/vi/1.mdx

@@ -0,0 +1,15 @@
+---
+title: Thép mạ kẽm nóng
+model: DX51D/DX52D/DX53D/S220GD/S250GD/S280GD/S320GD/S320GD/S350GD
+place: Công ty TNHH Công nghiệp Trọng Kelunpu Jiaxiang
+publishedTime: 2023-08-01
+images: 
+  - http://kelunpuzhonggong.com/upload/20251102082125.jpg
+detail: Có kết cấu/Không kết cấu
+spec: 
+  - Độ dày danh nghĩa: 0.6-6.0
+  - Chiều rộng danh nghĩa: 800-1250
+  - Đường kính trong cuộn thép: 610
+packaging: Cuộn đơn
+slug: 1
+---

content/product/vi/2.mdx

@@ -0,0 +1,15 @@
+---
+title: Thép lăn lạnh
+model: DC01/DC03/DC04
+place: Công ty TNHH Công nghiệp Trọng Kelunpu Jiaxiang
+publishedTime: 2025-10-21
+images: 
+  - http://kelunpuzhonggong.com/upload/20251021161717.jpg
+detail: 
+spec: 
+  - Độ dày danh nghĩa: 0.16-3.0
+  - Chiều rộng danh nghĩa: 800-1250
+  - Đường kính trong cuộn thép: 610
+packaging: 
+slug: 2
+---

content/product/vi/3.mdx

@@ -0,0 +1,15 @@
+---
+title: Thép lăn nóng
+model: DC01/DC03/DC04
+place: Công ty TNHH Công nghiệp Trọng Kelunpu Jiaxiang
+publishedTime: 2025-10-21
+images: 
+  - http://kelunpuzhonggong.com/upload/20251021161717.jpg
+detail: 
+spec: 
+  - Độ dày danh nghĩa: 0.16-3.0
+  - Chiều rộng danh nghĩa: 800-1250
+  - Đường kính trong cuộn thép: 610
+packaging: 
+slug: 3
+---

content/product/zh/1.mdx

@@ -0,0 +1,15 @@
+---
+title: 无花镀锌
+model: DX51D/DX52D/DX53D/S220GD/S250GD/S280GD/S320GD/S320GD/S350GD
+place: 嘉祥科伦普重工有限公司
+publishedTime: 2023-08-01
+images: 
+  - http://kelunpuzhonggong.com/upload/20251102082125.jpg
+detail: 毛化/无毛化
+spec: 
+  - 公称厚度：0.6-6.0
+  - 公称宽度：800-1250
+  - 钢卷内径：610
+packaging: 单卷
+slug: 1
+---

content/product/zh/2.mdx

@@ -0,0 +1,15 @@
+---
+title: 冷轧
+model: DC01/DC03/DC04
+place: 嘉祥科伦普重工有限公司
+publishedTime: 2025-10-21
+images: 
+  - http://kelunpuzhonggong.com/upload/20251021161717.jpg
+detail: 
+spec: 
+  - 公称厚度：0.16-3.0
+  - 公称宽度：800-1250
+  - 钢卷内径：610
+packaging: 
+slug: 2
+---

content/product/zh/3.mdx

@@ -0,0 +1,15 @@
+---
+title: 热轧
+model: DC01/DC03/DC04
+place: 嘉祥科伦普重工有限公司
+publishedTime: 2025-10-21
+images: 
+  - http://kelunpuzhonggong.com/upload/20251021161717.jpg
+detail: 
+spec: 
+  - 公称厚度：0.16-3.0
+  - 公称宽度：800-1250
+  - 钢卷内径：610
+packaging: 
+slug: 3
+---

content/product/zh/4.mdx

@@ -0,0 +1,15 @@
+---
+title: 热轧
+model: DC01/DC03/DC04
+place: 嘉祥科伦普重工有限公司
+publishedTime: 2025-10-21
+images: 
+  - http://kelunpuzhonggong.com/upload/20251021161717.jpg
+detail: 
+spec: 
+  - 公称厚度：0.16-3.0
+  - 公称宽度：800-1250
+  - 钢卷内径：610
+packaging: 
+slug: 3
+---