- Add GiteaClient.createToken() static method for Basic Auth token creation
- Add AccessToken interface with all Gitea 1.21+ fields
- Create docs/GITEA_INTEGRATION.md with complete usage guide
- Document API scopes (all, read:*, write:*)
- Add examples for agents integration
API scopes per Gitea 1.21+:
- 'all' for full access
- 'read:issue', 'write:issue' for issues
- 'read:repository', 'write:repository' for repos
- 'read:milestone', 'write:milestone' for milestones
2519079e6e