feat: add use case for token refresh or reset

[svenjacobs]

This PR adds a RefreshTokensOrResetUseCase, similar to RunWithTokensOrResetUseCase, which calls refresh() and resets the tokens in case of an expected OAuth error.

[Copilot]

Pull Request Overview

This PR adds a new RefreshTokensOrResetUseCase that provides a convenient way to refresh tokens and automatically reset them when encountering expected OAuth errors like invalid_grant. This complements the existing RunWithTokensOrResetUseCase by offering a standalone token refresh operation with automatic fallback handling.

Key changes:

• Introduces RefreshTokensOrResetUseCase class with similar error handling logic to RunWithTokensOrResetUseCase
• Adds comprehensive test coverage for the new use case
• Extracts shared default error constants to a dedicated Constants.kt file

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
RefreshTokensOrResetUseCase.kt	New use case class that wraps token refresh with automatic reset on expected OAuth errors
RefreshTokensOrResetUseCaseTest.kt	Complete test suite covering success, expected error reset, and unexpected error scenarios
Constants.kt	Shared constant for default OAuth errors list
RunWithTokensOrResetUseCase.kt	Updated to use shared constants and added cross-reference documentation
RunWithTokensOrResetUseCaseTest.kt	Enhanced test to verify refresh behavior is actually called
Client.kt	Added documentation cross-reference to the new use case

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}