Special Customers & Gameplay Improvements

New Special Customers
- Added six unique customer encounters to pharmacies in 2030: Alien, Trivia, Bulk, Color Requests, Rush, and Special Requests.
- Each encounter introduces different challenges, decisions, and rewards.

VIP Delivery Improvements
- Rebalanced negotiations with more realistic acceptance chances.
- Reducing quantities or discounts now affects customer acceptance.
- Offering better discounts can improve acceptance chances.

HR+ Improvements
- Added a maximum of 20 prepaid salary days per employee.
- Improved HR+ menu interactions.

UI & General Improvements
- Improved map icon labels and visibility.
- Various gameplay adjustments and UI fixes.