feat(server/inventory): send slot data to AddItem callback

Sends item data such as the slot, count, metadata, etc. as the second
argument when an item was successfully given to the target.
Mostly useful for getting the generated metadata for an item.

modules/inventory/server.lua

@@ -541,7 +541,8 @@ function Inventory.AddItem(inv, item, count, metadata, slot, cb)
 	if type(item) ~= 'table' then item = Items(item) end
 	if type(inv) ~= 'table' then inv = Inventory(inv) end
 	count = math.floor(count + 0.5)
-	local success, reason = false, nil
+	local success, resp
+
 	if item then
 		if inv then
 			metadata, count = Items.Metadata(inv.id, item, metadata or {}, count)
@@ -570,23 +571,27 @@ function Inventory.AddItem(inv, item, count, metadata, slot, cb)
 			if slot then
 				Inventory.SetSlot(inv, item, count, metadata, slot)
 				inv.weight = inv.weight + (item.weight + (metadata?.weight or 0)) * count
-				success = true
+
+				if cb then
+					success = true
+					resp = inv.items[slot]
+				end
 
 				if inv.type == 'player' then
 					if shared.framework == 'esx' then Inventory.SyncInventory(inv) end
 					TriggerClientEvent('ox_inventory:updateSlots', inv.id, {{item = inv.items[slot], inventory = inv.type}}, {left=inv.weight, right=inv.open and Inventories[inv.open]?.weight}, count, false)
 				end
 			else
-				reason = 'inventory_full'
+				resp = cb and 'inventory_full'
 			end
 		else
-			reason = 'invalid_inventory'
+			resp = cb and 'invalid_inventory'
 		end
 	else
-		reason = 'invalid_item'
+		resp = cb and 'invalid_item'
 	end
 
-	if cb then cb(success, reason) end
+	if cb then cb(success, resp) end
 end
 exports('AddItem', Inventory.AddItem)