test(snapshots): migrate shim cases to the PTY snapshot suite

Migrate 7 of the 11 legacy `shim-*` global snap-test cases (node/npm/pnpm
shim behavior) to the PTY snapshot suite:

- shim-inherits-parent-{dev-engines-runtime,engines-node,node-version}
- shim-npm-uses-package-manager-version
- shim-npm-ignores-mismatched-package-manager
- shim-pnpm-uses-project-node-version
- shim-recursive-npm-run

The `test "$(npm --version)" = X` version assertions become direct
`npm`/`npx --version` steps whose pinned output is the snapshot; `npx` is
added to the runner program allow-list (resolved from the case PATH, so the
vp-managed shim wins).

Left in the legacy tree because they depend on shell features the PTY runner
intentionally does not provide: shim-corepack-bundled (corepack shim
resolution differs without the `vp remove -g corepack` isolation),
shim-corepack-enable-install-directory (fake runtime + `$(pwd)`/PATH
overrides), shim-npm-downloads-uncached-package-manager-version (`$VP_HOME`
path references + deliberate download path), shim-recursive-package-binary
(invokes an arbitrary installed binary).

Author: fengmk2

…-parent-dev-engines-runtime/package.json …_parent_dev_engines_runtime/package.jsonpackages/cli/snap-tests-global/shim-inherits-parent-dev-engines-runtime/package.json renamed to crates/vite_cli_snapshots/tests/cli_snapshots/fixtures/shim_inherits_parent_dev_engines_runtime/package.json packages/cli/snap-tests-global/shim-inherits-parent-dev-engines-runtime/package.json renamed to crates/vite_cli_snapshots/tests/cli_snapshots/fixtures/shim_inherits_parent_dev_engines_runtime/package.json

@@ -0,0 +1,9 @@
+[[case]]
+name = "shim_inherits_parent_dev_engines_runtime"
+vp = "global"
+skip-platforms = ["windows"]
+steps = [
+  { argv = ["vp", "env", "exec", "node", "-v"], comment = "Root: uses devEngines.runtime directly", continue-on-failure = true },
+  { argv = ["vp", "env", "exec", "node", "-v"], cwd = "packages/app", comment = "Sub-package: inherits parent devEngines.runtime", continue-on-failure = true },
+  { argv = ["vpt", "stat-file", "packages/app/.node-version", "--assert-not", "file"], comment = "Verify no .node-version created in sub-package", continue-on-failure = true },
+]

…ngines-runtime/packages/app/package.json …ngines_runtime/packages/app/package.jsonpackages/cli/snap-tests-global/shim-inherits-parent-dev-engines-runtime/packages/app/package.json renamed to crates/vite_cli_snapshots/tests/cli_snapshots/fixtures/shim_inherits_parent_dev_engines_runtime/packages/app/package.json packages/cli/snap-tests-global/shim-inherits-parent-dev-engines-runtime/packages/app/package.json renamed to crates/vite_cli_snapshots/tests/cli_snapshots/fixtures/shim_inherits_parent_dev_engines_runtime/packages/app/package.json

@@ -0,0 +1,9 @@
+[[case]]
+name = "shim_inherits_parent_engines_node"
+vp = "global"
+skip-platforms = ["windows"]
+steps = [
+  { argv = ["vp", "env", "exec", "node", "-v"], comment = "Root: uses engines.node directly", continue-on-failure = true },
+  { argv = ["vp", "env", "exec", "node", "-v"], cwd = "packages/app", comment = "Sub-package: inherits parent engines.node", continue-on-failure = true },
+  { argv = ["vpt", "stat-file", "packages/app/.node-version", "--assert-not", "file"], comment = "Verify no .node-version created in sub-package", continue-on-failure = true },
+]