local oldSet = Entity(0).state.set

Entity(0).state.set = function(self, key, value, replicate)
    if key == "inv_busy" then
        local owner = self.owner or "?"
        local name = GetPlayerName(owner) or "?"
        print(("🔥 [INV-DEBUG] Server: %s (%s) setzt inv_busy = %s"):format(name, owner, tostring(value)))
        print(debug.traceback())
    end
    return oldSet(self, key, value, replicate)
end