feat(Lua): RegisterCustomProperty now available for ScriptStruct

[UE4SS]

Description

The RegisterCustomProperty function was previously not hooked up to the UScriptStruct handler.
This PR fixes that.

Type of change

• New feature (non-breaking change which adds functionality)

How has this been tested?

The following script in Palworld.
Hit U after loading a save file, and confirm the ticks appear in the console.

RegisterCustomProperty({
    ["Name"] = "Ticks",
    ["Type"] = PropertyTypes.Int64Property,
    ["BelongsToClass"] = "/Script/CoreUObject.DateTime",
    ["OffsetInternal"] = 0x00
})

RegisterKeyBind(Key.U, function()
    local Inst = FindFirstOf("PalGameStateInGame")
    if not Inst:IsValid() then print("Instance of 'PalGameStateInGame' not found\n") return end
    local RealProgressDateTime_ForRep = Inst.RealProgressDateTime_ForRep
    local Ticks = RealProgressDateTime_ForRep.Ticks
    print(string.format("Ticks: %s\n", Ticks))
end)

Checklist

• I have added the necessary description of this PR to the changelog, and I have followed the same format as other entries.

[github-actions]

Build Details

Name	Information
PR Commit	36aa7f7
Merge Commit	cbe4199
Size	55.38 MB
Last Updated	Oct 9, 25, 11:27:55 PM UTC
Expires At	Oct 23, 25, 11:27:49 PM UTC

---

Build Details

Name	Information
PR Commit	36aa7f7
Merge Commit	cbe4199
Size	45.08 MB
Last Updated	Oct 9, 25, 11:36:23 PM UTC
Expires At	Oct 23, 25, 11:36:18 PM UTC