LuteOrg/lute-v3

AI Summary: This issue proposes adding a `source_url` field to the story parser in the Lute application. This will allow storing the original source of stories, which can then be displayed as a URI in the book's details. The change involves updating language definition templates and the book creation service.

AI Summary: This issue proposes upgrading the pytest-bdd dependency to a newer version. The goal is to resolve existing warnings that were previously ignored and ensure the new version is compatible with the project's build process, local testing, and CI environment across all supported Python versions.