feat: 小程序移除管理后台入口，新增admin-web前端项目

将管理后台功能从微信小程序中剥离，独立为Vue.js前端项目admin-web

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

admin-web/src/views/Inbox.vue

@@ -0,0 +1,56 @@
+<template>
+  <div class="container">
+    <section class="hero fade-up">
+      <div class="hero-badge">INBOX</div>
+      <h1 class="hero-title">用户私信收件箱</h1>
+      <p class="hero-sub">仅展示通过检测后成功送达的私信内容。</p>
+    </section>
+
+    <section class="card fade-up fade-up-delay-1" v-if="list.length">
+      <div class="card-title">私信列表</div>
+      <div class="list-item" v-for="item in list" :key="item.id">
+        <div class="item-title">{{ item.text }}</div>
+        <div class="item-sub">发送人：{{ item.nickname || item.username }}（{{ item.username }}）</div>
+        <div class="row">
+          <span class="label">发送时间</span>
+          <span class="value">{{ item.created_text }}</span>
+        </div>
+      </div>
+    </section>
+
+    <section class="card fade-up fade-up-delay-1" v-else>
+      <div class="empty">{{ loading ? '加载中...' : '暂无私信内容。' }}</div>
+    </section>
+  </div>
+</template>
+
+<script>
+import { request } from '@/utils/request'
+
+export default {
+  name: 'InboxView',
+  data() {
+    return {
+      loading: false,
+      list: []
+    }
+  },
+  mounted() {
+    this.fetchList()
+  },
+  methods: {
+    async fetchList() {
+      this.loading = true
+      try {
+        const data = await request({ url: '/content/posts/inbox', params: { page: 1, page_size: 80 } })
+        this.list = (data.items || []).map((item) => ({
+          ...item,
+          created_text: (item.created_at || '').replace('T', ' ').slice(0, 19)
+        }))
+      } finally {
+        this.loading = false
+      }
+    }
+  }
+}
+</script>