Add linked mini program functionality and enhance link tag handling

- Introduced `navigateToMiniProgramAppIdList` in app.json for mini program navigation.
- Updated link tag handling in the read page to support mini program keys and app IDs.
- Enhanced content parsing to include app ID and mini program key in link tags.
- Added linked mini programs management in the admin panel with API endpoints for CRUD operations.
- Improved UI for selecting linked mini programs in the content creation page.

miniprogram/pages/read/read.wxml

@@ -48,7 +48,7 @@
         <block wx:for="{{item}}" wx:key="index" wx:for-item="seg">
           <text wx:if="{{seg.type === 'text'}}">{{seg.text}}</text>
           <text wx:elif="{{seg.type === 'mention'}}" class="mention" bindtap="onMentionTap" data-user-id="{{seg.userId}}" data-nickname="{{seg.nickname}}">@{{seg.nickname}}</text>
-          <text wx:elif="{{seg.type === 'linkTag'}}" class="link-tag" bindtap="onLinkTagTap" data-url="{{seg.url}}" data-label="{{seg.label}}" data-tag-type="{{seg.tagType}}" data-page-path="{{seg.pagePath}}" data-tag-id="{{seg.tagId}}">#{{seg.label}}</text>
+          <text wx:elif="{{seg.type === 'linkTag'}}" class="link-tag" bindtap="onLinkTagTap" data-url="{{seg.url}}" data-label="{{seg.label}}" data-tag-type="{{seg.tagType}}" data-page-path="{{seg.pagePath}}" data-tag-id="{{seg.tagId}}" data-app-id="{{seg.appId}}" data-mp-key="{{seg.mpKey}}">#{{seg.label}}</text>
           <image wx:elif="{{seg.type === 'image'}}" class="content-image" src="{{seg.src}}" mode="widthFix" show-menu-by-longpress bindtap="onImageTap" data-src="{{seg.src}}"></image>
         </block>
       </view>