refactor(models): 将status字段重命名为task_status以更明确表达含义

models/decode_record.py

@@ -12,7 +12,7 @@ class DecodeRecord(BaseModel):
     task_id:          Annotated[str, Field(description='任务ID')]
     video_id:            Annotated[str, Field(description='视频ID')]
     video_url:            Annotated[str, Field(description='视频地址')]
-    status:      Annotated[Optional[int], Field(description='任务状态', default=1)]  # 0:待执行  /   1:执行中  /  2:执行成功  3:执行失败
+    task_status:      Annotated[Optional[int], Field(description='任务状态', default=1)]  # 0:待执行  /   1:执行中  /  2:执行成功  3:执行失败
     create_timestamp: Annotated[Optional[int], Field(description='任务创建时间戳', default_factory=get_now_ts)]
 
     def save(self):