Add a Provider Package Add a complete first-party package that follows the current provider interfaces, repository conventions, security requirements, and release process. Read the Current Sources of Truth Before implementing anything, read: - Add new provider for current package and release requirements - Provider development notes for naming, schemas, and workflow serialization - Provider architecture for the provider abstraction - Secure URL handling when the provider fetches polling, image, audio, video, or other URLs Use PR #18595 as a recent end-to-end example, but choose the current pr…