feat: 首页、分类页加载数据逻辑重构

cloudfunctions/pageContentBuild/index.js

@@ -45,7 +45,7 @@ function toHomeDisplayItem(ws) {
         ageBand: ageBand(ws.ageMin || 0, ws.ageMax || 0),
         difficulty: DIFFICULTY_LABELS[ws.difficulty] || '基础',
         icon: '',
-        img: ws.previewImg || '',
+        previewImg: ws.previewImg || '',
         badge: ws.isNew ? 'NEW' : ws.isHot ? 'HOT' : '',
         path: ws.path || '',
         available: true,
@@ -141,7 +141,9 @@ async function buildCategoryData(db) {
 }
 
 async function buildHomeData(db, event) {
-    const featuredIds = Array.isArray(event.featuredIds) ? event.featuredIds : [];
+    const featuredIds = Array.isArray(event.featuredIds)
+        ? event.featuredIds
+        : [];
     const hotIds = Array.isArray(event.hotIds) ? event.hotIds : [];
     const sectionConfigs = Array.isArray(event.sections) ? event.sections : [];
 
@@ -264,9 +266,7 @@ exports.main = async (event) => {
         return {
             success: false,
             message:
-                error instanceof Error
-                    ? error.message
-                    : '生成分类页数据失败',
+                error instanceof Error ? error.message : '生成分类页数据失败',
         };
     }
 };