feat(app): 添加多模板关于我们页面及相关路由和404页面

- 新增404页面，优化未找到页面体验，避免被搜索引擎索引
- 增加文件代理接口，隐藏真实文件服务器地址，支持文件请求代理
- 实现/article、/case、/product及/page动态路由兼容列表与详情展示
- 添加动态CMS页面兼容入口处理旧式路径，统一路由与SEO设置
- 新增模板1、模板7、模板2、模板3关于我们页面，实现多模板支持
- 模板增强支持CMS单页内容加载及SEO信息动态设置
- 配置环境变量及Git忽略文件规则辅助开发和构建环境管理

package.json

@@ -0,0 +1,45 @@
+{
+  "name": "website",
+  "type": "module",
+  "private": true,
+  "packageManager": "pnpm@9.15.9",
+  "scripts": {
+    "build": "node --import ./scripts/crypto-hash-polyfill.mjs ./node_modules/nuxt/bin/nuxt.mjs build",
+    "build:staging": "dotenv -e .env.staging -- node --import ./scripts/crypto-hash-polyfill.mjs ./node_modules/nuxt/bin/nuxt.mjs build",
+    "dev": "node --import ./scripts/crypto-hash-polyfill.mjs ./node_modules/nuxt/bin/nuxt.mjs dev",
+    "dev:staging": "dotenv -e .env.staging -- node --import ./scripts/crypto-hash-polyfill.mjs ./node_modules/nuxt/bin/nuxt.mjs dev",
+    "generate": "node --import ./scripts/crypto-hash-polyfill.mjs ./node_modules/nuxt/bin/nuxt.mjs generate",
+    "lint": "eslint .",
+    "lint:fix": "eslint . --fix",
+    "preview": "node --import ./scripts/crypto-hash-polyfill.mjs ./node_modules/nuxt/bin/nuxt.mjs preview",
+    "postinstall": "node --import ./scripts/crypto-hash-polyfill.mjs ./node_modules/nuxt/bin/nuxt.mjs prepare"
+  },
+  "dependencies": {
+    "@ant-design-vue/nuxt": "^1.4.6",
+    "ant-design-vue": "^4.2.6",
+    "dayjs": "^1.11.20",
+    "nuxt": "^4.2.2",
+    "vue": "^3.5.26",
+    "vue-router": "^4.6.4"
+  },
+  "optionalDependencies": {
+    "@oxc-parser/binding-darwin-arm64": "^0.105.0"
+  },
+  "devDependencies": {
+    "@eslint/js": "^9.39.2",
+    "@nuxtjs/tailwindcss": "^6.14.0",
+    "@types/node": "^25.0.3",
+    "dotenv-cli": "^11.0.0",
+    "eslint": "^9.39.2",
+    "eslint-plugin-vue": "^10.6.2",
+    "globals": "^16.5.0",
+    "typescript-eslint": "^8.50.1"
+  },
+  "pnpm": {
+    "onlyBuiltDependencies": [
+      "@parcel/watcher",
+      "esbuild",
+      "core-js"
+    ]
+  }
+}