Summary of PR #230 ("Adding client assertion claims")
This work item documents and tracks the changes proposed in PR #230, which adds support for specifying client assertion claims in the MicrosoftEntraApplicationOptions class.

Key enhancements made in the PR:

• A new property, ClientAssertionClaims (IDictionary<string, string>?), was added to MicrosoftEntraApplicationOptions, allowing users to specify custom claims for client authentication via signed JWTs.
• The copy constructor of MicrosoftEntraApplicationOptions was updated to properly clone the new ClientAssertionClaims property.
• Public API files were updated for all supported frameworks to expose the new property to consumers.
• XML documentation was added for the new property to clarify its purpose and usage.

Testing and Documentation Updates:

• The CloneClonesAllProperties unit test was extended to verify correct cloning and downstream preservation of ClientAssertionClaims.
• Developers implementing client assertion scenarios now have an official way to specify claims directly in this repo, improving extensibility and maintainability.

Additional context:

• The changes are backward compatible and make the property available across all target frameworks.
• See PR Adding client assertion claims #230 for implementation details, code changes, and further discussion: Adding client assertion claims #230