Adds a periodic vehicle inspection system (HU) to Farming Simulator 25 for all vehicles with a license plate - tractors, trucks, cars, trailers, harvesters, auger wagons and more.

--- WHAT DOES THIS MOD DO? ---
Every vehicle with an actual license plate mounted automatically gets an inspection interval based on its vehicle class, speed, or permissible gross weight (e.g. car/motorcycle every 24 months, truck every 12 months, tractor up to 40 km/h every 24 months / above every 12 months, trailer up to 10 t every 24 months / above every 12 months). Once due, the vehicle is marked "Due" or "Overdue" but always stays drivable - fully usable for roleplay without limiting gameplay.

--- INITIAL SETUP (one-time, admins only) ---
In the game settings under "Vehicle Inspection", two roles can be assigned:
- Inspection farm: may perform inspections and renew inspection dates.
- Decommissioning authority: may decommission a vehicle or revoke it.
Both admin-only, saved with the savegame, synchronized to every player.

--- USING THE INSPECTION STATION ---
Its own tab in the pause menu (green clock icon) with the full vehicle register across all farms. Select a vehicle, then:

[Enter] Perform inspection - renews to the full interval (inspection farm only).
[C] Decommission/recommission vehicle (decommissioning authority only).
[X] Change sort order (validity/farm/defect notice).
[I] Individual interval - sets a custom inspection interval for the selected vehicle (Default/3/5/6/9/12/24/60 months), independent of the automatic class calculation. Useful for special cases or vehicles meant to look "used". Current value shown bottom right, key freely rebindable (inspection farm only).

--- VEHICLE CLASSES AND INTERVALS ---
Modeled after real German inspection regulations (§ 29 StVZO) as a game-balanced approximation - not legal advice. All classes, thresholds, and over 60 vehicle categories are freely adjustable in huSettings.xml, no coding required.

--- MULTIPLAYER ---
All settings and inspection data are saved with the savegame and continuously synchronized between server and players.