Try to pin exact pnpm version

In package.json:

{
  "packageManager": "pnpm@9.12.0"
}

Please share your full package.json and build logs (first ~50 lines). Please don't share any private or sensitive information with that.

A few additional random tips

Ensure:

pnpm-lock.yaml

is present and committed.

3. Force Node ≥ 18

{
  "engines": {
    "node": ">=18"
  }
}