test(cli): stabilize root-only build snapshot

Author: fengmk2

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

@@ -17,4 +17,7 @@ A root-only workspace has no target ambiguity. Static extraction cannot see
 the build input that the plugin supplies. Bare vp build must run in place in
 a non-interactive terminal.
 """
-steps = [{ argv = ["vp", "build"], tty = false }]
+steps = [
+  { argv = ["vp", "build"], tty = false, snapshot = false },
+  { argv = ["vpt", "list-dir", "dist/assets"], comment = "build output stays in the root workspace" },
+]

crates/vp_cli_snapshots/tests/cli_snapshots/fixtures/settings_only_workspace/snapshots/build_in_place.global.md

@@ -6,12 +6,11 @@ a non-interactive terminal.
 
 ## `vp build`
 
-```
-transforming...
-✓ 2 modules transformed.
-rendering chunks...
-computing gzip size...
-dist/assets/index-<hash>.js  <size> kB │ gzip: <size> kB
 
-✓ built in <duration>
+## `vpt list-dir dist/assets`
+
+build output stays in the root workspace
+
+```
+index-<hash>.js
 ```

crates/vp_cli_snapshots/tests/cli_snapshots/fixtures/settings_only_workspace/snapshots/build_in_place.local.md

@@ -6,12 +6,11 @@ a non-interactive terminal.
 
 ## `vp build`
 
-```
-transforming...
-✓ 2 modules transformed.
-rendering chunks...
-computing gzip size...
-dist/assets/index-<hash>.js  <size> kB │ gzip: <size> kB
 
-✓ built in <duration>
+## `vpt list-dir dist/assets`
+
+build output stays in the root workspace
+
+```
+index-<hash>.js
 ```