Ernesto Martínez 3a9ac7ef33 feat(auth): add GitHub Copilot authentication and API integration ...

Add complete GitHub Copilot support including:
- Device flow OAuth authentication via GitHub's official client ID
- Token management with automatic caching (25 min TTL)
- OpenAI-compatible API executor for api.githubcopilot.com
- 16 model definitions (GPT-5 variants, Claude variants, Gemini, Grok, Raptor)
- CLI login command via -github-copilot-login flag
- SDK authenticator and refresh registry integration

Enables users to authenticate with their GitHub Copilot subscription and
use it as a backend provider alongside existing providers.

2025-11-27 20:14:30 +01:00

..

main.go

feat(auth): add GitHub Copilot authentication and API integration

2025-11-27 20:14:30 +01:00