feat(deps): upgrade upstream dependencies (#1121)

Automated daily upgrade of upstream dependencies:
- rolldown (latest tag)
- vite (latest tag)
- vitest (latest npm version)
- tsdown (latest npm version)

Build status: success

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Medium Risk**
> Primarily a dependency/toolchain bump (Vite/Rolldown/Vitest/OXC) which
can change build/test behavior or bundling output despite minimal code
changes.
> 
> **Overview**
> Updates the bundled toolchain versions across the repo: Rust workspace
deps bump `oxc*` to `0.121.0` and `vfs` to `0.13.0`, and JS
deps/lockfiles bump `vite`/`rolldown`/`vitest` and related packages
(e.g. `@vitejs/devtools`, `terser`, `vue`).
> 
> Adds new `optional-runtime-types` type-only export entries for the CLI
and test packages, updates the recorded CLI help snapshot text for
`--standalone`, and refreshes upstream commit hashes in
`.upstream-versions.json`.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
58d6356. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: Brooooooklyn