fusion/.changeset/refactor-github-gh-cli.md

@gsxdsm/fusion

@gsxdsm/fusion
patch

Refactor GitHub integration to use gh CLI

• All GitHub operations now prefer gh CLI authentication over GITHUB_TOKEN
• Added listIssues() and getIssue() methods to GitHubClient
• Removed in-app GitHubRateLimiter (gh CLI handles rate limiting)
• REST API remains available as fallback when GITHUB_TOKEN is set
• PR Monitor no longer requires getGitHubToken option