feat: 完成分龄页开发

miniprogram/englishPages/letterTracing/letterTracing.ts

@@ -22,6 +22,7 @@ import {
 } from '../shared/data/fontProfiles';
 import { loadLetterFont } from '../shared/draw/drawTools';
 import type { DebugPublishMeta } from '../../utils/debugPublish';
+import { incrementWorksheetLikes } from '../../utils/worksheetStats';
 
 /** 三字母精练分组：26 字母每 3 个一组 */
 const TRIPLE_GROUPS: { title: string; letters: string[] }[] = [];
@@ -271,9 +272,12 @@ createPage(
             this.drawCanvas();
         },
 
-        onPreviewFavorite() {
+        async onPreviewFavorite() {
             const next = !this.data.isPreviewFavorite;
             this.setData({ isPreviewFavorite: next });
+            if (next) {
+                incrementWorksheetLikes(this.data.worksheetId);
+            }
             wx.showToast({
                 title: next ? '收藏成功' : '已取消收藏',
                 icon: 'none',
@@ -354,6 +358,7 @@ createPage(
                     worksheetId,
                     functionId: worksheetId,
                     traceMode,
+                    isPreviewFavorite: false,
                     selectedLetter,
                     selectedLetterPair: `${selectedLetter}${selectedLetter.toLowerCase()}`,
                     letterCaseLower,