接入 zcode Turn execution failed provider=b590933b-143b-4367-88fa-43b63e2afdc0 model=deepseek-v4-flash request=25b6920d-7610-4aec-82ad-71c8efb14184 reason=invalid_request status=400 retryable=false Error from provider (Console Go): Upstream request failed: Model is unavailable. 昨晚上都好好的