test: use Node.js script for cross-platform args passthrough test

Replace echo-based scripts with a Node.js args printer to ensure
consistent output across Unix and Windows. Restores the args
passthrough test case that was removed due to pnpm quoting
differences.

Author: fengmk2

packages/cli/snap-tests-global/command-vpr/args.mjs

@@ -0,0 +1,4 @@
+// Print arguments passed to this script, one per line
+for (const arg of process.argv.slice(2)) {
+  console.log(arg);
+}

packages/cli/snap-tests-global/command-vpr/package.json

@@ -2,8 +2,8 @@
   "name": "command-vpr",
   "version": "1.0.0",
   "scripts": {
-    "hello": "echo hello from script",
-    "greet": "echo greet"
+    "hello": "node args.mjs hello from script",
+    "greet": "node args.mjs greet"
   },
   "packageManager": "pnpm@10.19.0"
 }

packages/cli/snap-tests-global/command-vpr/snap.txt

@@ -34,9 +34,20 @@ Documentation: https://viteplus.dev/guide/run
 > vpr hello # should run script via vpr shorthand
 
 > command-vpr@<semver> hello <cwd>
-> echo hello from script
+> node args.mjs hello from script
 
-hello from script
+hello
+from
+script
+
+> vpr greet --arg1 value1 # should pass through additional args
+
+> command-vpr@<semver> greet <cwd>
+> node args.mjs greet --arg1 value1
+
+greet
+--arg1
+value1
 
 [1]> vpr nonexistent # should show pnpm missing script error
  ERR_PNPM_NO_SCRIPT  Missing script: nonexistent

packages/cli/snap-tests-global/command-vpr/steps.json

@@ -2,6 +2,7 @@
   "commands": [
     "vpr -h # should show vp run help",
     "vpr hello # should run script via vpr shorthand",
+    "vpr greet --arg1 value1 # should pass through additional args",
     "vpr nonexistent # should show pnpm missing script error"
   ]
 }