HitFloat

Visual polish update for better combat feedback.

• Reworked floating text animation with smoother easing and cleaner fade-out.
• Improved readability with strong outline + glow layers.
• Better size/position scaling based on entity hitbox (small and large mobs look correct).
• Enhanced critical-hit visuals: richer color pulse, cleaner particle ring and trail.
• Added render-distance culling and overlap handling for clearer multi-hit combat.