🎨 Palette: [UX improvement] Semantic Error Colors for TUI Footer

[omsingh02]

💡 What
Added semantic red styling to the TUI footer panel when the application status contains an error indicator (e.g., "[!]" or "error").

🎯 Why
Previously, any status that was not explicitly "Listening" or "Processing" would fall back to a green success style. This made it difficult for users to quickly identify when an error occurred, leading to confusion.

📸 Before/After
Before: Error messages in the footer would appear with green icons and borders.
After: Error messages in the footer now appear with red icons, bold red text, and red borders.

♿ Accessibility
Improves visual accessibility by ensuring error states do not use success colors, aiding users in quickly recognizing and responding to application issues.

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PR created automatically by Jules for task 10738350898116645056 started by @omsingh02

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