- Implemented complete OAuth2 Device Authorization Grant with PKCE (S256)
- Added aisbf/auth/qwen.py for OAuth2 authentication
- Added aisbf/providers/qwen.py for OpenAI-compatible DashScope API
- Cross-process token synchronization with file locking
- Automatic token refresh with 30-second expiry buffer
- Optional API key mode (bypass OAuth2)
- Dashboard integration ready
- Free tier: 1,000 requests/day, 60 requests/minute
- Available models: qwen-plus, qwen-turbo, qwen-max, coder-model
- Updated documentation in AI.PROMPT, README.md, and CHANGELOG.md
- Version bumped to 0.99.0