🎨 Palette: [UX improvement] add semantic color for error statuses in TUI

[omsingh02]

💡 What: Added a specific check in the TUI footer to render error status messages in a bold red color rather than falling back to the default green success style.
🎯 Why: To make the interface more intuitive and provide clearer visual feedback to the user when an error occurs, preventing confusion caused by displaying errors with a "success" indicator.
📸 Before/After:

• Before: All non-listening/non-processing statuses, including errors (e.g. [!] Voice error: ...), were displayed with a green "●" indicator.
• After: Statuses containing [!] or error now correctly display with a bold red "●" indicator and bold red text.
  ♿ Accessibility: Improves visual accessibility by ensuring error states are properly distinguished through appropriate semantic color usage.

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PR created automatically by Jules for task 14571362380060960303 started by @omsingh02

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