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

app/templates/template-06/pages/NewsDetail.vue

@@ -0,0 +1,48 @@
+<template>
+  <div class="min-h-screen bg-white">
+    <div class="container mx-auto px-4 sm:px-6 lg:px-8 py-12">
+      <div v-if="article" class="max-w-4xl mx-auto">
+        <div class="mb-6"><NuxtLink :to="`/article${article?.navigationId ? '?navId=' + article.navigationId : ''}`" class="text-sm text-[#666666] hover:text-[#CF1313]">← 返回新闻列表</NuxtLink></div>
+        <h1 class="text-3xl sm:text-4xl font-bold text-[#1E2A47] mb-4">{{ article.title }}</h1>
+        <div class="flex flex-wrap items-center gap-4 text-sm text-[#666666] mb-8 pb-8 border-b border-[#E5E7EB]">
+          <span v-if="article.categoryName" class="px-3 py-1 bg-[#FDECEC] text-[#CF1313] rounded-full">{{ article.categoryName }}</span>
+          <span>发布时间：{{ formatDate(article.publishTime || article.createTime) }}</span>
+          <span v-if="article.author">作者：{{ article.author }}</span>
+        </div>
+        <div v-if="article.image || article.cover" class="rounded-2xl overflow-hidden mb-10 bg-[#F4F6FA] flex items-center justify-center">
+          <img :src="fileUrl(article.image || article.cover)" :alt="article.title" class="w-full max-h-[420px] object-contain">
+        </div>
+        <div class="cms-content">
+          <RichText :content="article.content" />
+          <PageAttachments
+            v-if="article?.files?.length"
+            :attachments="article.files"
+          />
+        </div>
+      </div>
+      <div v-else class="text-center py-20">
+        <h1 class="text-2xl font-bold text-[#1E2A47] mb-4">文章不存在或已下架</h1>
+        <NuxtLink :to="`/article${article?.navigationId ? '?navId=' + article.navigationId : ''}`" class="text-[#CF1313] hover:underline">返回新闻列表</NuxtLink>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import dayjs from 'dayjs'
+import type { Article } from '~/types'
+const route = useRoute()
+const id = route.params.id as string
+const { fileUrl } = useFileUrl()
+const { data: article } = await useFetch<Article | null>(`/api/article/detail?id=${id}`, { key: `article-${id}` })
+function formatDate(date?: string) { if (!date) return ''; return dayjs(date).format('YYYY-MM-DD') }
+</script>
+
+<style scoped>
+.cms-content :deep(h2),
+.cms-content :deep(h3),
+.cms-content :deep(h4) { color: #1E2A47; margin-top: 1.5em; margin-bottom: .75em; }
+.cms-content :deep(p) { color: #333333; line-height: 1.85; margin-bottom: 1em; }
+.cms-content :deep(a) { color: #CF1313; }
+.cms-content :deep(img) { border-radius: 12px; }
+</style>