fix(cli): inline lint-staged version into staged debug bundle (#1925)

## Problem

- #1922

`vp staged --debug` crashes in the published package.

When debug logging is enabled, bundled `lint-staged` calls
`getVersion()`(`lib/version.js`), which reads its own manifest
via`readFile(new URL('../package.json', import.meta.url))`. The CLI
bundleslint-staged into `dist/staged/bin.js`, so that relative
`../package.json` does not exist at runtime and the command throws
instead of printing the debug log.

This is exactly what the pinned `lint-staged@16.4.0` does in
`lib/version.js`:

```js
import fs from 'node:fs/promises'

export const getVersion = async () => {
  const packageJson = JSON.parse(await fs.readFile(new URL('../package.json', import.meta.url)))
  return packageJson.version
}
```

Source:
https://github.com/lint-staged/lint-staged/blob/445f9dd042b88528c798b2e25c21c9adbc69a732/lib/version.js#L1-L6

## Fix

Add a tsdown plugin (`inline-lint-staged-version`) that rewrites the
`./version.js` import coming from `lint-staged/lib/index.js` to a
virtual module
exposing the dependency version resolved at build time:

```js
export const getVersion = async () => "16.4.0";
```

Keeps the `getVersion` named-export shape identical, so no lint-staged
internals change.

## Tests

- Extend the `command-staged-with-config` global snap test with a `vp
staged --debug` step that must succeed. A regression flips the recorded
exit code (`>` → `[1]>`), failing the snapshot.

Verified against a real build: `dist/staged/bin.js` now contains the
inlined `const version = "16.4.0"` and no longer references
`readFile(new URL('../package.json', ...))`.

```bash
vscode ➜ /workspaces/vite-plus (fix-debug-staged) $ vp staged --debug
lint-staged: Running `lint-staged@16.4.0` on Node.js v22.18.0 (linux) +126ms
lint-staged:execGit: Running git command: [ 'version', '--build-options' ] +128ms
lint-staged: git version 2.51.1
cpu: aarch64
no commit associated with this build
```


---

closes: #1922

---------

Co-authored-by: MK (fengmk2) <fengmk2@gmail.com>

Author: rokuosan

packages/cli/snap-tests-global/command-staged-with-config/snap.txt

@@ -20,5 +20,8 @@
 [COMPLETED] Cleaning up temporary files...
 
 > git add -A && git commit -m 'second'
+> echo 'export const bar = 2;' >> src/index.ts && git add src/index.ts
+> vp staged --debug # should succeed with debug enabled
+> git add -A && git commit -m 'third'
 > printf 'eval("code");\n' > src/fail.js && git add src/fail.js
 [1]> vp staged > /dev/null 2>&1 # should fail when staged .js file has lint errors

packages/cli/snap-tests-global/command-staged-with-config/steps.json

@@ -9,6 +9,15 @@
     },
     "vp staged # should succeed with staged .ts files",
     { "command": "git add -A && git commit -m 'second'", "ignoreOutput": true },
+    {
+      "command": "echo 'export const bar = 2;' >> src/index.ts && git add src/index.ts",
+      "ignoreOutput": true
+    },
+    {
+      "command": "vp staged --debug # should succeed with debug enabled",
+      "ignoreOutput": true
+    },
+    { "command": "git add -A && git commit -m 'third'", "ignoreOutput": true },
     {
       "command": "printf 'eval(\"code\");\\n' > src/fail.js && git add src/fail.js",
       "ignoreOutput": true

packages/cli/tsdown.config.ts

@@ -1,5 +1,10 @@
+import { createRequire } from 'node:module';
+
 import { defineConfig } from 'tsdown';
 
+const require = createRequire(import.meta.url);
+const lintStagedPackageJson = require('lint-staged/package.json') as { version: string };
+
 /**
  * Rewrite `../versions.js` → `./versions.js` at resolve time.
  *
@@ -18,6 +23,22 @@ const fixVersionsPathPlugin = {
   },
 };
 
+/**
+ * Replace lint-staged's lib/version.js with a build-time version value.
+ *
+ * The original module reads ../package.json at runtime when debug logging is enabled,
+ * but that file does not exist in the bundled dist/staged/bin.js.
+ */
+const inlineLintStagedVersionPlugin = {
+  name: 'inline-lint-staged-version',
+  load(id: string) {
+    if (id.replaceAll('\\', '/').endsWith('/lint-staged/lib/version.js')) {
+      return `export const getVersion = async () => ${JSON.stringify(lintStagedPackageJson.version)};\n`;
+    }
+    return undefined;
+  },
+};
+
 export default defineConfig([
   // ESM — all entry points bundled to dist/
   {
@@ -56,7 +77,7 @@ export default defineConfig([
         mainFields: ['module', 'main'],
       },
     },
-    plugins: [fixVersionsPathPlugin],
+    plugins: [fixVersionsPathPlugin, inlineLintStagedVersionPlugin],
   },
 
   // CJS — dual-format entries