fix(cli): stamp package-manager lifecycle env for vp run scripts

crates/vp_cli_snapshots/tests/cli_snapshots/fixtures/vite_task_lifecycle_env/check-env.js

@@ -0,0 +1,14 @@
+// Surfaces the package-manager lifecycle env that `vp run` stamps for
+// package.json scripts (#2317): before the fix every variable below printed
+// `(undefined)`, so child tooling (npm-run-all, `ni`) could not detect pnpm
+// and fell back to npm. The user-agent platform/arch tail (`linux x64`) is
+// the one machine-dependent value the suite redaction does not mask, so it
+// is normalized here from the runtime's own platform/arch.
+const vars = ['npm_execpath', 'npm_config_user_agent', 'INIT_CWD'];
+for (const name of vars) {
+  let value = process.env[name] ?? '(undefined)';
+  if (name === 'npm_config_user_agent') {
+    value = value.replace(`${process.platform} ${process.arch}`, '<platform> <arch>');
+  }
+  console.log(`${name}=${value}`);
+}

crates/vp_cli_snapshots/tests/cli_snapshots/fixtures/vite_task_lifecycle_env/package.json

@@ -0,0 +1,8 @@
+{
+  "name": "vite-task-lifecycle-env",
+  "private": true,
+  "scripts": {
+    "check-env": "node check-env.js"
+  },
+  "packageManager": "pnpm@11.0.0"
+}

crates/vp_cli_snapshots/tests/cli_snapshots/fixtures/vite_task_lifecycle_env/scripts/setup-fake-pnpm.cjs

@@ -0,0 +1,28 @@
+const { chmodSync, mkdirSync, writeFileSync } = require('node:fs');
+const { join } = require('node:path');
+
+const vpHome = process.env.VP_HOME;
+if (!vpHome) {
+  throw new Error('VP_HOME is required');
+}
+
+// The layout of a managed pnpm install: the JS CLI entry `pnpm.cjs` plus the
+// platform shims, so package-manager resolution finds pnpm@11.0.0 without a
+// download and `npm_execpath` resolves to the real JS CLI entry.
+const binDir = join(vpHome, 'package_manager', 'pnpm', '11.0.0', 'pnpm', 'bin');
+mkdirSync(binDir, { recursive: true });
+
+writeFileSync(
+  join(binDir, 'pnpm.cjs'),
+  "console.log('pnpm ' + process.argv.slice(2).join(' '));\n",
+);
+
+const unixShim = join(binDir, 'pnpm');
+writeFileSync(unixShim, "#!/usr/bin/env node\nrequire('./pnpm.cjs');\n");
+chmodSync(unixShim, 0o755);
+
+writeFileSync(join(binDir, 'pnpm.cmd'), '@echo off\r\nnode "%~dp0pnpm.cjs" %*\r\n');
+writeFileSync(
+  join(binDir, 'pnpm.ps1'),
+  'node "$PSScriptRoot/pnpm.cjs" @args\nexit $LASTEXITCODE\n',
+);

crates/vp_cli_snapshots/tests/cli_snapshots/fixtures/vite_task_lifecycle_env/snapshots.toml

@@ -0,0 +1,15 @@
+[[case]]
+name = "vite_task_lifecycle_env"
+vp = "local"
+comment = """
+Regression test for #2317: `vp run` stamps the package-manager lifecycle env
+(npm_execpath, npm_config_user_agent, INIT_CWD) for package.json scripts, so
+child tooling like npm-run-all detects pnpm instead of falling back to npm.
+Pre-fix every variable printed `(undefined)`. The fake managed pnpm install
+under VP_HOME keeps the case offline; the script normalizes the user-agent
+platform/arch tail that suite redaction does not mask.
+"""
+steps = [
+  { argv = ["node", "scripts/setup-fake-pnpm.cjs"], snapshot = false },
+  { argv = ["vp", "run", "check-env"] },
+]

crates/vp_cli_snapshots/tests/cli_snapshots/fixtures/vite_task_lifecycle_env/snapshots/vite_task_lifecycle_env.md

@@ -0,0 +1,20 @@
+# vite_task_lifecycle_env
+
+Regression test for #2317: `vp run` stamps the package-manager lifecycle env
+(npm_execpath, npm_config_user_agent, INIT_CWD) for package.json scripts, so
+child tooling like npm-run-all detects pnpm instead of falling back to npm.
+Pre-fix every variable printed `(undefined)`. The fake managed pnpm install
+under VP_HOME keeps the case offline; the script normalizes the user-agent
+platform/arch tail that suite redaction does not mask.
+
+## `node scripts/setup-fake-pnpm.cjs`
+
+
+## `vp run check-env`
+
+```
+$ node check-env.js ⊘ cache disabled
+npm_execpath=<home>/.vite-plus/package_manager/pnpm/<version>/pnpm/bin/pnpm.cjs
+npm_config_user_agent=pnpm/<version> npm/? node/<version> <platform> <arch>
+INIT_CWD=<workspace>
+```

crates/vp_pm_cli/src/lib.rs

@@ -12,6 +12,7 @@ mod config;
 mod dispatch;
 mod error;
 mod helpers;
+mod lifecycle_env;
 mod package_manager;
 mod request;
 pub(crate) mod resolution;
@@ -21,6 +22,7 @@ pub use cli::{ManagedGlobalCommand, PackageManagerCommand, PmCommand};
 pub use config::npm_registry;
 pub use dispatch::dispatch;
 pub use error::Error;
+pub use lifecycle_env::LifecycleEnvContext;
 pub use package_manager::{
     PackageManager, PackageManagerBuilder, PackageManagerResolution, PackageManagerSource,
     PackageManagerType, download_package_manager, get_package_manager_type_and_version,