fix(migrate): integrate leftover tsdown config - #2646

When an interrupted migration has already added `vite-plus`, running `vp
migrate` again can leave `.oxfmtrc.json` behind and report that the
project already uses Vite+. Formatting then uses defaults instead of the
unmerged options.

The existing-project finalization path skips standalone Oxc configs. Run
the existing config merger for the root and workspace packages, and
count completed merges as migration work. This covers Oxlint and Oxfmt
JSON/JSONC configs, preserves existing inline config precedence, and
retains configs that cannot be merged with a warning. A subsequent
migration remains a no-op.

The branch incorporates upstream main at `b1c41b2a`, including the
leftover tsdown config fix from #2646. Both finalization paths and
result flags are preserved. A regression test covers simultaneous Oxfmt
and tsdown config migration and an unchanged retry.

…in APIs (#2692)

`vp env use` now sets each package manager's version independently. This
release also adds Oxlint plugin APIs and fixes migration, installation,
and template extraction.

### Breaking Changes

#### Package-manager overrides

Direct package-manager commands no longer use `VP_PACKAGE_MANAGER`. Use
the matching version variable in shell profiles, CI jobs, and
Dockerfiles:

| Previous override for a direct command | New override |
| --- | --- |
| `VP_PACKAGE_MANAGER=npm@<version>` | `VP_NPM_VERSION=<version>` |
| `VP_PACKAGE_MANAGER=pnpm@<version>` | `VP_PNPM_VERSION=<version>` |
| `VP_PACKAGE_MANAGER=yarn@<version>` | `VP_YARN_VERSION=<version>` |
| `VP_PACKAGE_MANAGER=bun@<version>` | `VP_BUN_VERSION=<version>` |

`VP_PACKAGE_MANAGER` still selects the manager and version for `vp
install` and related commands. `vp env use pnpm@10` now changes only the
direct pnpm commands. To override `vp install`, set `VP_PACKAGE_MANAGER`
explicitly.

The old `.session-package-manager` file is no longer read or migrated.
Run `vp env use` again to create the new session files. Projects that
use only project pins or global defaults need no changes. See the
[environment guide](https://viteplus.dev/guide/env)
([#2658](#2658),
[#2659](#2659)), by
@liangmiQwQ.

#### Installer preferences

`VP_NODE_MANAGER` now controls only Node.js. Existing installations
retain saved preferences during upgrades, so `vp upgrade` needs no
configuration changes. For scripted installations, set `VP_PM_MANAGER`
to apply the same choice to package managers:

| Previous combined setting | New combined setting |
| --- | --- |
| `VP_NODE_MANAGER=no` | `VP_NODE_MANAGER=no VP_PM_MANAGER=no` |
| `VP_NODE_MANAGER=yes` | `VP_NODE_MANAGER=yes VP_PM_MANAGER=yes` |

Update installer commands in CI jobs and Dockerfiles. Use
`VP_NPM_MANAGER`, `VP_PNPM_MANAGER`, `VP_YARN_MANAGER`, or
`VP_BUN_MANAGER` for individual preferences. The interactive prompt
retains its combined choice. See the [installer variables
guide](https://viteplus.dev/guide/installer-env-vars)
([#2681](#2681)), by
@liangmiQwQ.

#### Vite DevTools

Projects that install `@vitejs/devtools` must update its dependency
range from `^0.4.0 || ^0.5.0` to `^0.7.1`. Projects without this
optional dependency need no changes. This requirement comes with the
Vite upgrade listed below.

### Highlights

- Installers and `vp upgrade` share setup behavior across platforms,
which simplifies maintenance. The installers retain support for older
releases ([#2611](#2611)),
by @liangmiQwQ.
- Custom Oxlint rules can import their APIs from
`vite-plus/lint/plugins` and `vite-plus/lint/plugins-dev`. `vp migrate`
updates supported existing imports
([#2328](#2328)), by
@fengmk2.
- `vp install` and `vp add` now honor `--ignore-scripts` for named
packages and managed global installations
([#2682](#2682)), by
@jong-kyung.
- `vp create` rejects malformed registry versions that could place
organization template files outside the cache directory
([#2665](#2665)), by
@fengmk2.

### Features

- The bundled tools update from `vite@8.2.2` to `vite@8.3.0` and from
`rolldown@1.2.7` to `rolldown@1.2.8`. They also update from
`oxlint@1.81.0` to `oxlint@1.82.0` and from `oxfmt@0.66.0` to
`oxfmt@0.67.0`. The new linter and formatter can flag code that passed
before. Run `vp fmt` after the upgrade if CI runs `vp check`
([#2670](#2670)), by
@fengmk2.

### Fixes & Enhancements

- `vp env pin` updates an active local `.nvmrc` and preserves its
comments. Use `--target nvmrc` to select this file explicitly
([#2676](#2676)), by
@ywenhao.
- `vp migrate` reports unsupported ESLint rules that it skips, so users
can review the missing checks
([#2689](#2689)), by
@yusuke99.
- `vp migrate` imports leftover tsdown configuration when a project
already uses Vite+
([#2646](#2646)), by
@TheAlexLichter.
- `vp migrate` accepts single-line JSON formatter configuration with a
final newline
([#2643](#2643)), by
@TheAlexLichter.
- `vp migrate` avoids a redundant `playwright` dependency when the
project already declares `@playwright/test`
([#2637](#2637)), by
@yusuke99.
- Newly scaffolded local generators honor `--no-interactive` and report
missing arguments without prompts. Existing generators need the updated
entrypoint
([#2677](#2677)), by
@SaKaNa-Y.
- `vp upgrade` installs its dependencies correctly when the installation
directory is inside a pnpm workspace
([#2644](#2644)), by
@fengmk2.
- Nested package-manager commands retain the selected Node runtime and
package-manager versions
([#2631](#2631)), by
@lyzno1.
- Built-in tools reuse the Node executable that starts the CLI. Editor
lint and format servers work when `node` is absent from `PATH`
([#2673](#2673)), by
@fengmk2.
- The npm command wrapper enables Node's compile cache before it loads
the CLI, which reduces repeated startup work
([#2648](#2648)), by
@pablog12.
- Package-manager commands suppress pnpm, npm, and supported Yarn update
notices. Yarn 4 daily tips are also hidden
([#2649](#2649),
[#2650](#2650),
[#2651](#2651)), by
@fengmk2.
- Invalid `package.json` errors include the affected file's path
([#2683](#2683)), by
@adamaveray.

### Docs

- The README task example uses the supported `env` field
([#2653](#2653)), by
@SaKaNa-Y.
- Migration guidance tells pnpm users to retain the generated `vite` and
`vitest` dependencies
([#2660](#2660)), by
@naokihaba.
- Lint and format guides explain root configuration and overrides for
monorepos. They clarify that nested configuration is not supported
([#2668](#2668)), by
@liangmiQwQ.

### Chore

- The repository removes unused Babel dependencies and the unused hooks
directory setter
([#2634](#2634),
[#2647](#2647)), by
@jong-kyung.
- CLI snapshot tests run across parallel jobs, and the pnpm 11 workspace
pack test excludes generated archives
([#2657](#2657),
[#2655](#2655)), by
@fengmk2.
- CI removes the unused Graphite optimization and adds Solid 2 ecosystem
coverage ([#2678](#2678),
[#2680](#2680)), by
@fengmk2.
- Release guidance clarifies validation and announcement procedures
([#2633](#2633)), by
@fengmk2.
- The runtime manager refreshes the signing keys for Node.js release
verification
([#2687](#2687)), by
@voidzero-guard[bot].

### Bundled Versions

| Tool | Version | Source |
| --- | --- | --- |
| `vite` | `8.3.0` |
[`434e8e9`](vitejs/vite@434e8e9)
|
| `rolldown` | `1.2.8` |
[`9704b56`](rolldown/rolldown@9704b56)
|
| `tsdown` | `0.23.0` | [npm](https://npmx.dev/package/tsdown/v/0.23.0)
|
| `vitest` | `4.1.11` | [npm](https://npmx.dev/package/vitest/v/4.1.11)
|
| `oxlint` | `1.82.0` | [npm](https://npmx.dev/package/oxlint/v/1.82.0)
|
| `oxlint-tsgolint` | `7.0.2001` |
[npm](https://npmx.dev/package/oxlint-tsgolint/v/7.0.2001) |
| `oxfmt` | `0.67.0` | [npm](https://npmx.dev/package/oxfmt/v/0.67.0) |

### Upgrade

```bash
vp upgrade
```

### New Contributors

@yusuke99, @pablog12, @SaKaNa-Y, @ywenhao, @adamaveray

**Full Changelog**:
v0.3.1...v0.3.2

---

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: MK (fengmk2) <fengmk2@gmail.com>