Added warning callouts to inform users that system-wide GitHub Apps are not recommended for security reasons.
Changes:
- Added warning callout in Create view when system-wide checkbox is enabled
- Added warning callout in Change view when GitHub App is system-wide
- Warning explains that system-wide apps are shared across all teams and can access repositories from any team
- Recommends creating team-specific GitHub Apps for better security and isolation
The warnings only appear on self-hosted instances where system-wide option is available (not on cloud).
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
