流式响应

设置 stream: true，响应以 SSE 逐块返回：

curl https://codingplan.cmkey.cn/v1/chat/completions \
  -H "Authorization: Bearer cy-xxxx" \
  -H "Content-Type: application/json" \
  -d '{"model":"deepseek-chat","stream":true,"messages":[{"role":"user","content":"讲个笑话"}]}'

bash

每个数据块形如 data: {...}，以 data: [DONE] 结束。