fix(wish-tree): 修复切换树时导航栏消失问题

- Canvas添加z-index: 1，确保不覆盖导航栏
- top-bar添加pointer-events: none，子元素恢复auto
- WXML添加trees.length保护，防止空数组访问
- switchTree添加空数组保护

.gitea/workflows/miniapp-preview.yml

@@ -93,6 +93,32 @@ jobs:
           cp mini/ci-artifacts/upload-result.json /ci-artifacts/miniapp-upload-latest.json
           ls -la /ci-artifacts/miniapp-upload-latest.json
           echo "Upload result saved on runner host: /opt/lunar/ci-artifacts/miniapp-upload-latest.json"
+      
+      - name: Send success notification
+        if: success()
+        env:
+          TELEGRAM_BOT_TOKEN: ${{ secrets.TELEGRAM_BOT_TOKEN }}
+          TELEGRAM_CHAT_ID: ${{ secrets.TELEGRAM_CHAT_ID }}
+          DISCORD_WEBHOOK_URL: ${{ secrets.DISCORD_WEBHOOK_URL }}
+        run: |
+          VERSION="$(tr -d '\n' < mini/ci-artifacts/resolved-version.txt)"
+          chmod +x .gitea/scripts/notify.sh
+          .gitea/scripts/notify.sh success \
+            "小程序开发版上传成功" \
+            "版本: ${VERSION}\n上传结果已保存到: /opt/lunar/ci-artifacts/miniapp-upload-latest.json"
+      
+      - name: Send failure notification
+        if: failure()
+        env:
+          TELEGRAM_BOT_TOKEN: ${{ secrets.TELEGRAM_BOT_TOKEN }}
+          TELEGRAM_CHAT_ID: ${{ secrets.TELEGRAM_CHAT_ID }}
+          DISCORD_WEBHOOK_URL: ${{ secrets.DISCORD_WEBHOOK_URL }}
+        run: |
+          chmod +x .gitea/scripts/notify.sh
+          .gitea/scripts/notify.sh failure \
+            "小程序开发版上传失败" \
+            "请检查 Actions 日志了解失败原因"
+      
       - name: Remove temporary credentials
         if: always()
         run: rm -f "$RUNNER_TEMP/wechat-ci.key"