Add lora_paths to v1_chat_generate_request

[ccchow]

Motivation

Add missing changes to the v1_chat_generate_request function following PR #2438

Modifications

Checklist

• Format your code according to the Contributor Guide.
• Add unit tests as outlined in the Contributor Guide.
• Update documentation as needed, including docstrings or example tutorials.

[qingzhong1]

Hello, I have a question. I started the service on a800 according to the following command. Why does the response to request "/v1/chat/completions" take 14 seconds? Is there any way to speed it up?python -m sglang.launch_server --model-path “”
--host 0.0.0.0
--port 8000
--tp-size 1
--mem-fraction-static 0.5
--served-model-name "Qwen2.5-7B-Instruct"
--chunked-prefill-size 64
--disable-cuda-graph
--disable-radix-cache
--lora-paths lora0=“”
--max-loras-per-batch 4