🎨 Palette: Improved CLI Feedback and Inclusive Achievements

[aidasofialily-cmd]

This PR implements several micro-UX improvements to the SPEED CLICKER CLI game:

1. Clean Terminal Updates: Added the \033[K ANSI escape sequence to the \r (carriage return) output lines. This ensures that when the UI updates in-place, any "ghost" characters from previous, longer lines are properly erased, providing a polished and professional look.
2. Visual Feedback: The countdown digits are now highlighted in Bold Yellow, and the "GO!" prompt is displayed in Bold Green, making the start of the game more engaging and clear.
3. Real-time Motivation: The gameplay UI now displays the current high score alongside the player's score, providing immediate context for their progress.
4. Inclusive Achievements: Previously, the "NEW BEST!" indicator and final congratulations were only shown if the player already had a non-zero high score. This change ensures that even first-time players feel a sense of accomplishment upon completing their first session.

All changes were verified with local builds, automated UX checks, and manual inspections of the terminal output.

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PR created automatically by Jules for task 2224357383521055628 started by @aidasofialily-cmd

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