test: add vpr help test and remove win32 ignore from snap test

Add `vpr -h` step to verify help output shows `vp run` help.
Remove `ignoredPlatforms: ["win32"]` since vpr works on all platforms.

Author: fengmk2

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

@@ -1,3 +1,36 @@
+> vpr -h # should show vp run help
+VITE+ - The Unified Toolchain for the Web
+
+Usage: vp run [OPTIONS] [TASK_SPECIFIER] [ADDITIONAL_ARGS]...
+
+Run tasks.
+
+Arguments:
+  [TASK_SPECIFIER]      `packageName#taskName` or `taskName`. If omitted, lists all available tasks
+  [ADDITIONAL_ARGS]...  Additional arguments to pass to the tasks
+
+Options:
+  -r, --recursive         Select all packages in the workspace
+  -t, --transitive        Select the current package and its transitive dependencies
+  -w, --workspace-root    Select the workspace root package
+  -F, --filter <FILTERS>  Match packages by name, directory, or glob pattern
+  --ignore-depends-on     Do not run dependencies specified in `dependsOn` fields
+  -v, --verbose           Show full detailed summary after execution
+  --last-details          Display the detailed summary of the last run
+  -h, --help              Print help (see more with '--help')
+
+Filter Patterns:
+  --filter <pattern>        Select by package name (e.g. foo, @scope/*)
+  --filter ./<dir>          Select packages under a directory
+  --filter {<dir>}          Same as ./<dir>, but allows traversal suffixes
+  --filter <pattern>...     Select package and its dependencies
+  --filter ...<pattern>     Select package and its dependents
+  --filter <pattern>^...    Select only the dependencies (exclude the package itself)
+  --filter !<pattern>       Exclude packages matching the pattern
+
+Documentation: https://viteplus.dev/guide/run
+
+
 > vpr hello # should fall back to pnpm run when no vite-plus dependency
 
 > command-vpr@<semver> hello <cwd>

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

@@ -1,6 +1,6 @@
 {
-  "ignoredPlatforms": ["win32"],
   "commands": [
+    "vpr -h # should show vp run help",
     "vpr hello # should fall back to pnpm run when no vite-plus dependency",
     "vpr greet --arg1 value1 # should pass through args to pnpm run",
     "vpr nonexistent # should show pnpm missing script error"