Ship a curated demo-vault/ for Smart Rename, bootstrapped by the release-injected
obsidian-dev-utils demo-vault-helper. Notes walk through renaming a note while
preserving backlink display text, handling invalid characters, and every setting.
Add a static registerDemoVaultCoverageSuite no-app test that keeps the demo vault
in sync with the PluginSettings surface, the project dprint.json (excludes
demo-vault), and the README demo vault access section.