chore(deps): bump ai from 3.1.36 to 3.2.12 in /app

Bumps [ai](https://github.com/vercel/ai) from 3.1.36 to 3.2.12.
- [Release notes](https://github.com/vercel/ai/releases)
- [Commits](https://github.com/vercel/ai/compare/[email protected]@3.2.12)

---
updated-dependencies:
- dependency-name: ai
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>