Document RestSharp v114 release with comprehensive changelog and versioned documentation

[qodo-free-for-open-source-projects]

Description

• RestSharp v114 introduces significant changes including breaking changes to IAuthenticator interface, new RedirectOptions for fine-grained redirect control, and improved error messaging for timeouts and root cause visibility
• The release includes new OAuth2 token lifecycle authenticators, parameter formatting with InvariantCulture, and changes to multipart form parameter quoting defaults
• Documentation must capture all breaking changes, new features, behavior changes, and bug fixes to help users migrate and understand the new capabilities
• A complete versioned documentation snapshot is needed for v114 to maintain historical documentation as the library evolves

Deliverables

• Changelog documentation — comprehensive v114.0 changelog documenting breaking changes, new features, behavior changes, and bug fixes with PR references
• Configuration updates — document RedirectOptions class with all configuration options, parameter formatting with InvariantCulture, and MultipartFormQuoteParameters default change
• Error handling improvements — document improved ErrorMessage for timeouts showing "The request timed out." and root cause visibility using GetBaseException().Message
• Versioned docs snapshot — create complete v114 documentation structure including advanced topics (authenticators, interceptors, serialization, error handling) and usage guides (client creation, request preparation, execution, response handling)