feat(rooms): add RoomChest nodes to Floor 0 rooms

ReceptionDesk, GiftShopShelf, RestaurantCounter, EmergencyCabinet added
to their respective tscn files. Fixes spawn_items deferred call to avoid
add_child race during _ready tree setup.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

scenes/rooms/floor0/EmergencyRoom.tscn

@@ -1,8 +1,9 @@
-[gd_scene load_steps=4 format=3 uid="uid://cozypaw_emergency"]
+[gd_scene load_steps=5 format=3 uid="uid://cozypaw_emergency"]
 
 [ext_resource type="PackedScene" path="res://scenes/objects/InteractiveObject.tscn" id="1_iobj"]
 [ext_resource type="PackedScene" path="res://scenes/objects/Ambulance.tscn" id="2_ambulance"]
 [ext_resource type="Script" path="res://scripts/objects/snap_point.gd" id="3_snap"]
+[ext_resource type="Script" path="res://scripts/objects/room_chest.gd" id="4_chest"]
 
 [node name="EmergencyRoom" type="Node2D"]
 
@@ -79,3 +80,8 @@ trigger_room = 3
 position = Vector2(310, 480)
 script = ExtResource("3_snap")
 pose = "lying"
+
+[node name="EmergencyCabinet" type="Node2D" parent="."]
+position = Vector2(150.0, 400.0)
+script = ExtResource("4_chest")
+chest_id = "emergency_cabinet"

scenes/rooms/floor0/GiftShop.tscn

@@ -1,7 +1,8 @@
-[gd_scene load_steps=3 format=3 uid="uid://cozypaw_giftshop"]
+[gd_scene load_steps=4 format=3 uid="uid://cozypaw_giftshop"]
 
 [ext_resource type="PackedScene" path="res://scenes/objects/InteractiveObject.tscn" id="1_iobj"]
 [ext_resource type="Script" path="res://scripts/objects/snap_point.gd" id="2_snap"]
+[ext_resource type="Script" path="res://scripts/objects/room_chest.gd" id="3_chest"]
 
 [node name="GiftShop" type="Node2D"]
 
@@ -68,3 +69,8 @@ position = Vector2(640, 510)
 [node name="SnapCounter" type="Node2D" parent="."]
 position = Vector2(640, 528)
 script = ExtResource("2_snap")
+
+[node name="GiftShopShelf" type="Node2D" parent="."]
+position = Vector2(120.0, 300.0)
+script = ExtResource("3_chest")
+chest_id = "giftshop_shelf"

scenes/rooms/floor0/Reception.tscn

@@ -1,7 +1,8 @@
-[gd_scene load_steps=3 format=3 uid="uid://cozypaw_reception"]
+[gd_scene load_steps=4 format=3 uid="uid://cozypaw_reception"]
 
 [ext_resource type="PackedScene" path="res://scenes/objects/InteractiveObject.tscn" id="1_iobj"]
 [ext_resource type="Script" path="res://scripts/objects/snap_point.gd" id="2_snap"]
+[ext_resource type="Script" path="res://scripts/objects/room_chest.gd" id="3_chest"]
 
 [node name="Reception" type="Node2D"]
 
@@ -102,3 +103,8 @@ script = ExtResource("2_snap")
 [node name="SnapBenchRight2" type="Node2D" parent="."]
 position = Vector2(1080, 555)
 script = ExtResource("2_snap")
+
+[node name="ReceptionDesk" type="Node2D" parent="."]
+position = Vector2(120.0, 555.0)
+script = ExtResource("3_chest")
+chest_id = "reception_desk"

scenes/rooms/floor0/Restaurant.tscn

@@ -1,7 +1,8 @@
-[gd_scene load_steps=3 format=3 uid="uid://cozypaw_restaurant"]
+[gd_scene load_steps=4 format=3 uid="uid://cozypaw_restaurant"]
 
 [ext_resource type="PackedScene" path="res://scenes/objects/InteractiveObject.tscn" id="1_iobj"]
 [ext_resource type="Script" path="res://scripts/objects/snap_point.gd" id="2_snap"]
+[ext_resource type="Script" path="res://scripts/objects/room_chest.gd" id="3_chest"]
 
 [node name="Restaurant" type="Node2D"]
 
@@ -118,3 +119,8 @@ script = ExtResource("2_snap")
 [node name="SnapTable3Right" type="Node2D" parent="."]
 position = Vector2(1120, 510)
 script = ExtResource("2_snap")
+
+[node name="RestaurantCounter" type="Node2D" parent="."]
+position = Vector2(120.0, 555.0)
+script = ExtResource("3_chest")
+chest_id = "restaurant_counter"

scripts/objects/room_chest.gd

@@ -18,7 +18,7 @@ func _ready() -> void:
 	_item_configs = RoomChestConfig.get_items(chest_id)
 	if not chest_id.is_empty() and GameState.has_method("get_chest_state"):
 		if not GameState.get_chest_state(chest_id).is_empty():
-			spawn_items()
+			call_deferred("spawn_items")
 
 
 func spawn_items() -> void:

test/unit/test_room_chests_floor0.gd

@@ -0,0 +1,54 @@
+## Tests for RoomChest presence and item counts in Floor 0 rooms.
+extends GutTest
+
+
+func test_reception_has_chest_reception_desk() -> void:
+	var room: Node = preload("res://scenes/rooms/floor0/Reception.tscn").instantiate()
+	add_child_autofree(room)
+	assert_not_null(room.get_node_or_null("ReceptionDesk"))
+
+
+func test_reception_desk_has_three_items() -> void:
+	var room: Node = preload("res://scenes/rooms/floor0/Reception.tscn").instantiate()
+	add_child_autofree(room)
+	var chest: RoomChest = room.get_node_or_null("ReceptionDesk") as RoomChest
+	assert_eq(chest.get_item_config_count(), 3)
+
+
+func test_giftshop_has_chest_giftshop_shelf() -> void:
+	var room: Node = preload("res://scenes/rooms/floor0/GiftShop.tscn").instantiate()
+	add_child_autofree(room)
+	assert_not_null(room.get_node_or_null("GiftShopShelf"))
+
+
+func test_giftshop_shelf_has_three_items() -> void:
+	var room: Node = preload("res://scenes/rooms/floor0/GiftShop.tscn").instantiate()
+	add_child_autofree(room)
+	var chest: RoomChest = room.get_node_or_null("GiftShopShelf") as RoomChest
+	assert_eq(chest.get_item_config_count(), 3)
+
+
+func test_restaurant_has_chest_restaurant_counter() -> void:
+	var room: Node = preload("res://scenes/rooms/floor0/Restaurant.tscn").instantiate()
+	add_child_autofree(room)
+	assert_not_null(room.get_node_or_null("RestaurantCounter"))
+
+
+func test_restaurant_counter_has_three_items() -> void:
+	var room: Node = preload("res://scenes/rooms/floor0/Restaurant.tscn").instantiate()
+	add_child_autofree(room)
+	var chest: RoomChest = room.get_node_or_null("RestaurantCounter") as RoomChest
+	assert_eq(chest.get_item_config_count(), 3)
+
+
+func test_emergency_has_chest_emergency_cabinet() -> void:
+	var room: Node = preload("res://scenes/rooms/floor0/EmergencyRoom.tscn").instantiate()
+	add_child_autofree(room)
+	assert_not_null(room.get_node_or_null("EmergencyCabinet"))
+
+
+func test_emergency_cabinet_has_three_items() -> void:
+	var room: Node = preload("res://scenes/rooms/floor0/EmergencyRoom.tscn").instantiate()
+	add_child_autofree(room)
+	var chest: RoomChest = room.get_node_or_null("EmergencyCabinet") as RoomChest
+	assert_eq(chest.get_item_config_count(), 3)