feat: enhance restart message in settings.sh with colored output

[HagaSpa]

Background / 背景

Enhanced the restart message in settings.sh to provide clearer visual feedback to users about the need to restart their system.
settings.shの再起動メッセージを強化し、ユーザーにシステム再起動の必要性について明確な視覚的フィードバックを提供しました。

Changes / 変更内容

• Added colored output to restart warning messages using ANSI color codes
• Changed all restart-related messages to bold yellow for better visibility
• Enhanced user experience with prominent visual indicators
• ANSIカラーコードを使用して再起動警告メッセージに色付きの出力を追加
• 視認性向上のため、すべての再起動関連メッセージを太字の黄色に変更
• 目立つ視覚的インジケーターでユーザー体験を向上

Impact scope / 影響範囲

Visual enhancement only - no functional changes to macOS settings configuration.
視覚的な改善のみ - macOS設定の構成に機能的な変更はありません。

Testing / 動作確認

• Verified colored output displays correctly in terminal / ターミナルで色付き出力が正しく表示されることを確認
• Confirmed ANSI color codes work as expected / ANSIカラーコードが期待通りに動作することを確認
• Tested message visibility and readability / メッセージの視認性と読みやすさをテスト

🤖 Generated with Claude Code

[claude]

Claude finished @HagaSpa's task —— View job

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Code Review for Enhanced Restart Messages

Todo List:

• Read and analyze the modified settings.sh file
• Review code quality and implementation approach
• Check for potential bugs or issues
• Evaluate performance considerations
• Assess security concerns
• Provide constructive feedback and recommendations

Review Summary: ✅ APPROVED WITH MINOR SUGGESTIONS

This is a solid enhancement that improves user experience with minimal risk. The colored output implementation is well-executed and follows good practices.

✅ Strengths:

• Clean Implementation: Proper ANSI escape codes (\033[1;33m for bold yellow, \033[0m for reset)
• Appropriate Color Choice: Yellow conveys warning/attention without being alarming
• Good UX: Enhanced visibility for critical restart messages
• Minimal Risk: Visual-only changes with no functional modifications
• Consistent Formatting: All restart messages use the same color scheme

🔍 Code Quality Analysis:

Lines 13-15 (settings.sh):

echo -e "\033[1;33m⚠️  RESTART REQUIRED\033[0m"
echo -e "\033[1;33mSome settings will not take effect until you restart your Mac.\033[0m"
echo -e "\033[1;33mPlease save your work and restart your system now.\033[0m"

✅ Correct use of:

• -e flag for echo to interpret escape sequences
• Proper ANSI color codes (bold yellow: \033[1;33m)
• Reset codes (\033[0m) to prevent color bleeding

💡 Minor Suggestions for Improvement:

1. Consider Terminal Compatibility: While ANSI codes work in most modern terminals, you could add a compatibility check:

   # Optional: Check if terminal supports colors
   if [[ -t 1 && -n "${TERM:-}" && "${TERM}" != "dumb" ]]; then
       YELLOW="\033[1;33m"
       RESET="\033[0m"
   else
       YELLOW=""
       RESET=""
   fi

2. DRY Principle: Consider defining color constants at the top:

   readonly YELLOW="\033[1;33m"
   readonly RESET="\033[0m"

3. Accessibility: The warning emoji ⚠️ is good, but the color choice is colorblind-friendly (yellow is generally accessible).

🔒 Security Assessment: ✅ SECURE

• No security concerns
• No user input processing
• No sensitive information exposure
• Standard ANSI escape sequences pose no security risk

⚡ Performance Assessment: ✅ OPTIMAL

• Negligible performance impact
• ANSI codes add minimal overhead
• Script execution time unchanged

🧪 Test Coverage: ✅ ADEQUATE

The PR description indicates proper testing:

• Verified colored output displays correctly
• Confirmed ANSI codes work as expected
• Tested message visibility and readability

Final Recommendation: ✅ MERGE READY

This is a well-implemented enhancement that improves user experience without introducing risks. The code is clean, follows best practices, and the testing appears thorough.