fix(admin): close hero/banner config chain in page-display IA

Wire existing HeroManager/BannerManager into page-display routes and
component loaders, fix banner REST round-trip (show_meta + optional title),
and retarget operator deep-links to the real slide managers.

assets/admin/src/constants/sections/page-display.js

@@ -42,10 +42,32 @@ export const pageDisplaySection = {
       label: '顶部多功能组件',
       route: '/page-display/header-components',
       title: '顶部多功能组件',
-      desc: '顶部轮播、图标卡片、搜索条、公告条等组件配置。',
+      desc: '配置顶部组件显示范围、轮播参数、搜索覆盖层与图标卡片。幻灯片内容见「Hero 轮播」「Banner 轮播」。',
       canonicalDomain: 'page_display',
       section: 'header-components',
     }),
+    customPage({
+      key: 'page-display-hero',
+      name: 'PageDisplayHero',
+      label: 'Hero 轮播',
+      route: '/page-display/hero',
+      title: 'Hero 轮播管理',
+      desc: '管理首页顶部 Hero 幻灯片内容（图片/视频、文案、图层、跳转）。显示开关与搜索/卡片配置见「顶部多功能组件」。',
+      component: 'HeroManager',
+      canonicalDomain: 'page_display',
+      section: 'hero',
+    }),
+    customPage({
+      key: 'page-display-banner',
+      name: 'PageDisplayBanner',
+      label: 'Banner 轮播',
+      route: '/page-display/banner',
+      title: 'Banner 管理',
+      desc: '管理首页内容流 Banner 幻灯片（图片、文案、跳转、启用状态）。',
+      component: 'BannerManager',
+      canonicalDomain: 'page_display',
+      section: 'banner',
+    }),
     customPage({
       key: 'page-display-footer',
       name: 'PageDisplayFooter',