test(cli): declare serve's isHostConfig read as serve-only in the boot-preparation parity pin

Claude-Session: https://claude.ai/code/session_01VoSxBQujKLZKPwK2u5ehQ6
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

packages/cli/src/utils/boot-preparation-parity.test.ts

@@ -151,6 +151,10 @@ const SERVE_ONLY: Record<string, string> = {
     'serve\'s boot-mode dispatch between the standalone stack and a host config\'s own plugins; the one-shot '
     + 'boot always boots the standalone data stack and composes a host config\'s plugins over it for their '
     + 'declarations (buildSchemaMigrationPlugins)',
+  isHostConfig:
+    'decides serve\'s artifact-less MetadataPlugin for a host config that no artifact door serves ([#22989]); '
+    + 'the one-shot boot boots the standalone data stack, whose MetadataPlugin is always composed, and lays a '
+    + 'host config\'s plugins over it (buildSchemaMigrationPlugins)',
   bundleDeclaresTranslations:
     'decides serve\'s tier-gated i18n service, which the declaration boot does not compose '
     + '(schema-migration-plugins.ts, "What this does NOT compose")',