Feature request: add a sandbox adapter for smolvm

[cweekly]

The sandbox layer is awesome. I want it to be even more awesome, by supporting 'smolvm' microvms from smolmachines^1, e.g.:

import { localProcessSandbox } from '@tanstack/ai-sandbox-local-process'
+ import { smolvmSandbox } from '@tanstack/ai-sandbox-smolvm'
import { dockerSandbox } from '@tanstack/ai-sandbox-docker'
import { daytonaSandbox } from '@tanstack/ai-sandbox-daytona'
import { vercelSandbox } from '@tanstack/ai-sandbox-vercel'

const dev = localProcessSandbox() // your machine, fast dev loop
+ const smolvm = smolvmSandbox({ smolfile: 'myNode24Smolvm'}) // your machine, secure dev loop
const isolated = dockerSandbox({ image: 'node:22' }) // a real container boundary
const cloud = daytonaSandbox() // managed cloud sandbox
const microvm = vercelSandbox({ runtime: 'node24' }) // managed microVM

IMHO smolvms represent a sweet spot for local dev: nearly as fast as local process (way faster given it's safe to run agents in yolo mode), with only advantages over docker (faster cold boot times, reduced overhead, elastic memory usage, better security w/ kernel-level isolation).

1. https://github.com/smol-machines/smolvm

Thanks for considering it.

(I could imagine trying to make time to put up a PR myself but in any case creating the discussion is step 1.)