Merge remote-tracking branch 'origin/dev_fix_sub' into dev_fix_sub

peng

2025-08-25 cbafbc0a3a704cc48e76ef0862ffcf74433186ff

 pages/mine/activity/addActivity.vue

@@ -526,7 +526,7 @@
         
             if (isVideo) {
               const extension = newSrc.split('.').pop().toLowerCase();
               return `<video width="${width}" alt="${newAlt}" src="${newSrc}" height="auto"></video>`;
               return `<video width="${width}" alt="${newAlt}" src="${newSrc}" height="auto" controls="controls"></video>`;
             }
         
             // 非视频：更新 src 和 alt