FUEL STATION MANAGEMENT SYSTEM - V5

Dashboard Profit Today:
- Visible only to Super Admin and Admin.
- Manager and Cashier cannot see the profit card.
- Super Admin profit is scoped to the currently selected station.
- Admin profit is scoped to the Admin's assigned station.
- Profit is calculated from today's sales using the latest purchase price effective on each sale date, less today's station expenses.

Note: For historical/accounting-grade profit, sales should store the purchase cost used at the time of sale. This V5 keeps the existing database structure and calculates using the latest effective fuel price for each sale date.
