Automatic Silage Additive Refill

Script mod for the automatic supply of silage additive to supported machines.

• When the additive tank drops below 50%, it is automatically refilled to 100%.
• Refills are checked whenever the fill level changes.
• Every successful refill is charged to the owning farm immediately.
• The price is calculated from the current shop price and pallet capacity.
• Multiplayer compatible: refilling and billing are handled server-side.