feat: MBTI头像与用户规则链路升级，三端页面与接口同步

Made-with: Cursor

miniprogram/pages/chapters/chapters.js

@@ -7,6 +7,8 @@
 
 const app = getApp()
 const { trackClick } = require('../../utils/trackClick')
+const { partEmojiForBodyIndex } = require('../../utils/partIcons.js')
+const { isSafeImageSrc } = require('../../utils/imageUrl.js')
 
 Page({
   data: {
@@ -116,15 +118,21 @@ Page({
         { id: 'appendix-2', title: '附录2｜创业者自检清单', mid: fixedMap['appendix-2'] },
         { id: 'appendix-3', title: '附录3｜本书提到的工具和资源', mid: fixedMap['appendix-3'] }
       ]
-      const bookData = parts.map((p) => ({
-        id: p.id,
-        icon: p.icon || '',
-        title: p.title,
-        subtitle: p.subtitle || '',
-        chapterCount: p.chapterCount || 0,
-        chapters: [],
-        alwaysShow: (p.title || '').indexOf('每日派对干货') > -1
-      }))
+      const bookData = parts.map((p, idx) => {
+        let icon = String(p.icon || '').trim()
+        if (icon && !isSafeImageSrc(icon)) icon = ''
+        const iconEmoji = icon ? '' : partEmojiForBodyIndex(idx)
+        return {
+          id: p.id,
+          icon,
+          iconEmoji,
+          title: p.title,
+          subtitle: p.subtitle || '',
+          chapterCount: p.chapterCount || 0,
+          chapters: [],
+          alwaysShow: (p.title || '').indexOf('每日派对干货') > -1
+        }
+      })
       app.globalData.totalSections = totalSections
       this.setData({
         bookData,