Module client 

OAuth 2.1 Client Implementation

This module provides an OAuth 2.1 client wrapper that supports:

• Authorization Code flow (with PKCE)
• Client Credentials flow (server-to-server)
• Device Authorization flow (CLI/IoT)

The client handles provider-specific configurations and quirks for Google, Microsoft, GitHub, GitLab, and generic OAuth providers.

Structs

OAuth2Client

OAuth 2.1 client wrapper supporting all modern flows