feat(deps): upgrade upstream dependencies

[Brooooooklyn]

Automated daily upgrade of upstream dependencies:

• rolldown (latest tag)
• rolldown-vite (latest tag)
• vitest (latest npm version)
• tsdown (latest npm version)

Build status: success

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Note

Medium Risk
Primarily a dependency/tooling upgrade, but it changes the CLI’s oxlint binary resolution logic and bumps multiple core build/test tools, which could affect linting execution and build/test behavior across platforms.

Overview
Updates upstream tooling versions (notably bundled vite beta, rolldown-vite pin, and various build/lint/test deps including oxfmt/oxlint/oxlint-tsgolint), with corresponding pnpm-lock.yaml refresh.

Fixes vite-plus lint binary resolution by deriving the oxlint executable path from resolve('oxlint') (package root) instead of resolve('oxlint/bin/oxlint'), accommodating package exports restrictions.

Refreshes CLI help snapshots to reflect the updated formatter options (adds biome as a migration source).

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