# Owlen Auth Manager

Unified authentication management for the Owlen AI agent.

## Overview
This crate manages the lifecycle of authentication credentials for various LLM providers. It supports both API key-based authentication and OAuth flows with automatic token refresh.

## Features
- **Multi-Source Credentials:** Load credentials from environment variables, secure storage, or command-line helpers.
- **OAuth Integration:** Built-in support for device code flows and standard OAuth 2.0.
- **Token Refresh:** Automatic background refreshing of expiring OAuth tokens.
- **Secure Handling:** Leverages the `credentials` crate for encrypted storage.

## Components
- `AuthManager`: The central coordinator for all authentication logic.
- `LoginFlow`: Manages the interactive login process for providers.
- `Refresher`: Handles periodic checks and updates for expiring credentials.