feat(ui): sort hand by rank+suit before render

src/ui/components/hand_area.gd

@@ -1,5 +1,5 @@
 class_name HandArea
-extends HBoxContainer
+extends FlowContainer
 
 signal cards_selected(selected: Array)
 signal hint_requested()
@@ -17,7 +17,13 @@ func update_hand(hand: Array) -> void:
         cn.queue_free()
     card_nodes.clear()
     selected_cards.clear()
+
+    var sorted_hand: Array[Card] = []
     for c in hand:
+        sorted_hand.append(c)
+    sorted_hand.sort_custom(func(a: Card, b: Card): return a.compare_to(b) < 0)
+
+    for c in sorted_hand:
         var node := CARD_SCENE.instantiate() as CardNode
         if node == null:
             continue