🎨 Palette: Enhance game start feedback and high score celebration visibility

[aidasofialily-cmd]

💡 What: The UX enhancement added

• Enhanced Visual Feedback: The pre-game countdown and "GO!" prompt are now colorized (Bold Yellow and Bold Green respectively) to provide clearer state transitions and engagement.
• Real-time Goal Tracking: Added the Personal Best high score to the live gameplay UI (Score: X | High: Y).
• Inclusive Celebrations: Fixed a logic bug where "NEW BEST!" and congratulatory messages only appeared if a high score already existed. Now, first-time players are celebrated when they set their very first record.
• Terminal Hygiene: Added CLR_RESET to the end of carriage-returned lines to prevent ANSI color leakage.

🎯 Why: The user problem it solves

• Lack of immediate goal context: Players previously had to remember their high score from the menu; now it's visible during play.
• Missing first-time delight: New players didn't get the "NEW BEST!" dopamine hit on their first successful run.
• Flat visual experience: The game start felt a bit static; colorized cues improve the "arcade" feel.

♿ Accessibility: Any a11y improvements made

• Improved visual hierarchy by using standard color macros for critical game states.
• Ensured terminal state consistency by explicitly resetting colors on volatile lines.

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PR created automatically by Jules for task 18143137158913886899 started by @aidasofialily-cmd

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