[Feature] Support unified paging in multi-lora serving

[Sunt-ing]

Checklist

• 1. If the issue you raised is not a feature but a question, please raise a discussion at https://github.com/sgl-project/sglang/discussions/new/choose Otherwise, it will be closed.
• 2. Please use English, otherwise it will be closed.

Motivation

Currently, SGL doesn't support the unified paging feature proposed by S-LoRA. However, this feature is important for memory management in multi-LoRA serving.

Related resources

No response

[Sunt-ing]

We will try to implement it soon.

Link: #2929

[jhinpan]

Sure! Thank you for your help~ cc @Fridge003

[Fridge003]

@Sunt-ing Thanks! Looking forward to your contribution!

[github-actions]

This issue has been automatically closed due to inactivity. Please feel free to reopen it if needed.