- Create rpi/banner.sh with print_banner, print_gradient_line,
print_logo, print_starfield, print_complete_banner functions
- Update setup.sh to source banner.sh (with inline fallback for curl)
- Update first-boot-wizard.sh to use banner functions
- Update sanitize-for-image.sh to use banner functions
- Fix MOTD thermometer spacing alignment
Single source of truth for ASCII banner styling.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
