internal/

Package auth implements login against Auth0 using the OAuth device authorization grant, refresh-token storage in the OS keychain, and a per-session TokenSource that refreshes transparently.

Package client is a thin JSON:API client for catalog-api, typed against catalog-objects.go value objects.

Package config resolves CLI configuration from flags, environment, and the config file.

Package dtrpg wraps github.com/pilgrimagesoftware/dtrpg-sdk.go for the CLI's `import dtrpg` commands: application-key storage in the OS keychain, session exchange, paged library retrieval, and product-to-volume mapping.