refactor(frontend): 优化拍摄消息提示逻辑

- 移除拍摄开始前的重复消息提示- 将成功提示消息移至接口调用成功后显示
- 优化错误处理和消息提示逻辑

frontend/src/views/Photography/shot.vue

@@ -375,7 +375,6 @@ async function runGoods(data) {
     type: 'run_mcu',
     data,
   })
-  ElMessage.success('开始拍摄，请稍后')
   runLoading.value = true;
   runAction.value.action = data.action
   runAction.value.goods_art_no = data.goods_art_no
@@ -393,6 +392,9 @@ async function runGoods(data) {
       ElMessage.error(result.msg)
       runLoading.value = false
       return;
+    }else{
+
+      ElMessage.success('开始拍摄，请稍后')
     }
   })