Security fixes:
- Enhanced branch name sanitization for cross-platform filesystem safety
(handles Windows-invalid chars, reserved names, path length limits)
- Added branch name validation in pr-info.ts to prevent command injection
- Sanitized prUrl in kanban-card to only allow http/https URLs
Code quality improvements:
- Fixed placeholder issue where {owner}/{repo} was passed literally to gh api
- Replaced async forEach with Promise.all for proper async handling
- Display PR number extracted from URL in kanban cards
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Added a new route for fetching PR info, allowing users to retrieve details about existing pull requests associated with worktrees.
- Updated the create PR handler to store metadata for existing PRs and handle cases where a PR already exists.
- Enhanced the UI components to display PR information, including a new button to address PR comments directly from the worktree panel.
- Improved the overall user experience by integrating PR state indicators and ensuring seamless interaction with the GitHub CLI for PR management.
