Add baseevents fallback for vehicle event triggers

[Cocodrulo]

Description

This pull request adds a fallback implementation for vehicle-related player events in server/events.lua to ensure core vehicle event handling works even if the baseevents resource is not running. The new code tracks when a player enters, aborts entering, enters, or leaves a vehicle, and triggers the appropriate server events.

Baseevents fallback implementation:

• Added a thread that monitors the player's vehicle interactions and triggers server events (baseevents:enteringVehicle, baseevents:enteringAborted, baseevents:enteredVehicle, baseevents:leftVehicle) when the baseevents resource is not started. This ensures consistent vehicle event handling regardless of resource state.
• Implemented a helper function GetPedVehicleSeat to determine the seat index the player occupies in a vehicle.

Checklist

• I have personally loaded this code into an updated qbcore project and checked all of its functionality.
• My code fits the style guidelines.
• My PR fits the contribution guidelines.

[Cisternita]

not useful

[Cocodrulo]

not useful

Why not? Why make a full event of QBCore relly on the existance of a script or not in the server and don't have a fallback?

[Qwerty1Verified]

I haven't tested this event personally, but could we benefit from using the CEventNetworkPlayerEnteredVehicle game event instead of the thread?

[Cocodrulo]

I don't think that event will detect the seat change

[Qwerty1Verified]

Do you mean when someone shuffles seat without leaving the vehicle?

[Cocodrulo]

exactly

[Cocodrulo]

And also when entering is aborted

[Qwerty1Verified]

From what I see, the current logic is: if not inVehicle -> if IsPedInVehicle -> Get Seat. This check only seems to occur during the transition from no vehicle to a new vehicle. The same goes for if the loop runs whilst they're trying to get into a vehicle: if not inVehicle -> if GetVehiclePedIsTryingToEnter.