fix: improve error handling for video generation process

Author: wxg0103

apps/models_provider/impl/aliyun_bai_lian_model_provider/model/ttv.py

@@ -104,7 +104,12 @@ def generate_video(self, prompt, negative_prompt=None, first_frame_url=None, las
         rsp = self._safe_call(VideoSynthesis.wait, task=rsp, api_key=self.api_key)
         if rsp.status_code == HTTPStatus.OK:
             maxkb_logger.info("视频生成完成！视频 URL:", rsp.output.video_url)
-            return rsp.output.video_url
+            if rsp.output.task_status == "SUCCEEDED":
+                maxkb_logger.info("视频生成完成！视频 URL:", rsp.output.video_url)
+                return rsp.output.video_url
+            else:
+                maxkb_logger.error("视频生成失败！")
+                raise RuntimeError(f'生成失败, message: {rsp.output.message}')
         else:
             maxkb_logger.error(f'生成失败，status_code: {rsp.status_code}, code: {rsp.code}, message: {rsp.message}')
             raise RuntimeError(f'生成失败，status_code: {rsp.status_code}, code: {rsp.code}, message: {rsp.message}')