fix(cli): expose Vitest 5 options in test help - #2809

Task cache settings now live under `cache`, and `vp migrate` moves
existing task settings for you. `vp lint` and `vp fmt` run from a
package directory now pick the same config as your editor, and piped
`vp` output exits cleanly.

### Breaking Changes

Task cache settings in `run.tasks` now go inside `cache`
([#2813](#2813),
[#2814](#2814),
[#2823](#2823),
[vite-task#749](voidzero-dev/vite-task#749)), by
@wan9chi.

| Old (top level of a task) | New |
| --- | --- |
| `env` | `cache.env` |
| `untrackedEnv` | `cache.untrackedEnv` |
| `input` | `cache.input` |
| `output` | `cache.output` |

`cache: true` is the same as `cache: {}`. After upgrading, a task that
still uses the old top-level fields fails with an error that points to
`vp migrate`. Run `vp migrate` to move the fields in `vite.config.*` for
the workspace root and every package. It warns about tasks in
`vite.config.*` that it cannot rewrite safely. Tasks created in other
modules, such as by a shared helper function, are not detected, so move
their fields by hand; the error lists every task that still needs it.
Projects whose tasks do not use these fields need no changes. See the
[task cache migration
rules](https://viteplus.dev/guide/migrate-rules#task-cache-configuration)
and the [`cache` reference](https://viteplus.dev/config/run#cache).

### Highlights

- `vp lint` and `vp fmt` run from a package directory now use the same
config as Oxlint, Oxfmt, and the language server, so results match your
editor. `vp check` still applies the workspace-root settings
([#2807](#2807)), by
@fengmk2.
- Global `vp` commands now exit cleanly when piped into a command that
closes early, such as `vp --version | head -n 1`, instead of aborting
with exit code 134
([#2785](#2785),
[#2793](#2793)), by
@naokihaba.
- Cached tasks on macOS no longer intermittently fail with `oils I/O
error (main): No such process`
([vite-task#703](voidzero-dev/vite-task#703)),
by @lifeiscontent.

### Features

- The bundled tools update `vite@8.3.0` -> `vite@8.3.1`,
`rolldown@1.2.9` -> `rolldown@1.2.11`, and `oxlint-tsgolint@7.0.2002` ->
`oxlint-tsgolint@7.0.2003`
([#2805](#2805),
[#2812](#2812)), by
@voidzero-guard[bot].

### Fixes & Enhancements

- Async `defineConfig` callbacks now type-check lint and format options,
such as `'warn'` rule severities, the same way as synchronous callbacks,
so configs updated by `vp migrate` no longer fail with `TS2769`
([#2803](#2803)), by
@TheAlexLichter.
- `vp test --help` now lists the Vitest 5 options `--repeats`,
`--injectCjsGlobals`, `--fsModuleCache`, `--fsModuleCachePath`, and
`--sharedViteServer`
([#2809](#2809)), by
@Marve10s.
- On Windows, `vp run` now matches environment variable names regardless
of letter case
([vite-task#747](voidzero-dev/vite-task#747)),
by @wan9chi.

### Docs

- The copy prompt dialog no longer nests scroll areas and shows clearer
copy feedback
([#2794](#2794),
[#2799](#2799)), by
@liangmiQwQ and @Boshen.

### Chore

- Snapshot tests share prepared packages and one Chromium process, run
faster on every platform, and no longer read the live npm registry in
the standalone npm fallback case
([#2771](#2771),
[#2786](#2786),
[#2797](#2797)), by
@fengmk2 and @voidzero-guard[bot].
- The snapshot setup check links the local `vite-plus` package into its
reference home instead of installing the version under release from npm,
so it passes before that version is published
([#2819](#2819)), by
@wan9chi.
- The preview migration harness installs a project's committed
dependencies before running `vp migrate`, so the Vitest 5 migration can
read the original Vitest version
([#2822](#2822)), by
@wan9chi.
- The standalone install workflow loads the generated environment before
running `vp env doctor`
([#2790](#2790)), by
@naokihaba.

### Bundled Versions

| Tool | Version | Source |
| --- | --- | --- |
| vite | `8.3.1` |
[`39ddf7c`](vitejs/vite@39ddf7c)
|
| rolldown | `1.2.11` |
[`8df4219`](rolldown/rolldown@8df4219)
|
| tsdown | `0.23.0` | [npm](https://npmx.dev/package/tsdown/v/0.23.0) |
| vitest | `5.0.1` | [npm](https://npmx.dev/package/vitest/v/5.0.1) |
| oxlint | `1.85.0` | [npm](https://npmx.dev/package/oxlint/v/1.85.0) |
| oxlint-tsgolint | `7.0.2003` |
[npm](https://npmx.dev/package/oxlint-tsgolint/v/7.0.2003) |
| oxfmt | `0.70.0` | [npm](https://npmx.dev/package/oxfmt/v/0.70.0) |

### Upgrade

```bash
vp upgrade
```

### New Contributors

@Marve10s

**Full Changelog**:
v1.0.0-rc.0...v1.0.0-rc.1

---

Merging this PR will trigger the release workflow.

---------

Co-authored-by: voidzero-guard[bot] <278573678+voidzero-guard[bot]@users.noreply.github.com>
Co-authored-by: wan9chi <me@wan9chi.com>