feat(h5): 小程序 embed 模式与全站 ICP 备案页脚

H5 支持 ?mp=1 嵌入微信 WebView；user-h5/admin-h5 底部展示蜀ICP备2025140386号-2 并链至工信部；补充小程序+H5 部署说明。

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/admin-h5/src/layouts/AdminShell.vue

@@ -2,6 +2,7 @@
 import { onMounted } from 'vue'
 import { RouterLink, RouterView, useRouter } from 'vue-router'
 import BrandLogo from '@/components/BrandLogo.vue'
+import IcpFooter from '@/components/IcpFooter.vue'
 import { useAuthStore } from '@/stores/auth'
 
 const auth = useAuthStore()
@@ -55,7 +56,10 @@ async function onLogout() {
       </div>
     </aside>
     <main class="main">
-      <RouterView />
+      <div class="main-body">
+        <RouterView />
+      </div>
+      <IcpFooter />
     </main>
   </div>
 </template>
@@ -91,7 +95,13 @@ nav a.router-link-active {
 }
 .foot { margin-top: auto; display: flex; flex-direction: column; gap: 0.5rem; }
 .role { font-size: 0.75rem; color: var(--muted); }
-.main { padding: 1.5rem 1.75rem; }
+.main {
+  padding: 1.5rem 1.75rem;
+  display: flex;
+  flex-direction: column;
+  min-height: 100vh;
+}
+.main-body { flex: 1; min-width: 0; }
 @media (max-width: 800px) {
   .shell { grid-template-columns: 1fr; }
   .nav { border-right: 0; border-bottom: 1px solid var(--line); }