Install gh (GitHub CLI) via Homebrew and prompt for authentication if not already logged in. This enables GitHub automation and CLI workflows during initial setup.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Set up .gitconfig and .gitignore under Dotter management with template variables for git_name and git_email to support different values across systems.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Add Homebrew-based setup script that installs development tools and
Dotter configuration manager. Script supports both macOS and Linux,
with platform-specific handling for casks.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
