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/utils/contentParser.js

@@ -55,17 +55,21 @@ function parseBlockToSegments(block) {
       if (userId || nickname) segs.push({ type: 'mention', userId, nickname })
 
     } else if (/data-type="linkTag"/i.test(tag)) {
-      // #linkTag — 自定义 span 格式（data-type="linkTag" data-url="..." data-tag-type="..." data-page-path="..."）
+      // #linkTag — 自定义 span 格式（data-type="linkTag" data-url="..." data-tag-type="..." data-page-path="..." data-app-id="..."）
       const urlMatch      = tag.match(/data-url="([^"]*)"/)
       const tagTypeMatch  = tag.match(/data-tag-type="([^"]*)"/)
       const pagePathMatch = tag.match(/data-page-path="([^"]*)"/)
       const tagIdMatch    = tag.match(/data-tag-id="([^"]*)"/)
+      const appIdMatch    = tag.match(/data-app-id="([^"]*)"/)
+      const mpKeyMatch    = tag.match(/data-mp-key="([^"]*)"/)
       const innerText     = tag.replace(/<[^>]+>/g, '').replace(/^#/, '').trim()
       const url           = urlMatch      ? urlMatch[1]      : ''
       const tagType       = tagTypeMatch  ? tagTypeMatch[1]  : 'url'
       const pagePath      = pagePathMatch ? pagePathMatch[1] : ''
       const tagId         = tagIdMatch    ? tagIdMatch[1]    : ''
-      segs.push({ type: 'linkTag', label: innerText || '#', url, tagType, pagePath, tagId })
+      const appId         = appIdMatch    ? appIdMatch[1]   : ''
+      const mpKey         = mpKeyMatch    ? mpKeyMatch[1]   : (tagType === 'miniprogram' ? appId : '')
+      segs.push({ type: 'linkTag', label: innerText || '#', url, tagType, pagePath, tagId, appId, mpKey })
 
     } else if (/^<a /i.test(tag)) {
       // #linkTag — 旧格式 <a href>（insertLinkTag 旧版产生，url 可能为空）