0.7.0

Use gh CLI as default backend with API fallback

• By default, the tool now uses the gh CLI to fetch PR data when available
• Automatically falls back to GitHub REST API (Octokit) if gh CLI is not installed or not authenticated
• Added --force-api flag to force using the GitHub API instead of gh CLI
• Added --force-gh flag to force using gh CLI (fails if not available)
• Added new CI/CD job to test both gh CLI and API modes
• Improved verbose logging to show which backend is being used

Related Pull Request: #18

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