feat(E4): 상점/휴식 노드 — 골드 소비·HP 회복

맵에 상점/휴식 노드 추가, 진입 시 전투 대신 상호작용 UI로 분기.

- data/map.json: 4행 맵에 rest(휴식)·shop(상점) 노드 추가(enemy 없음)
- 생성기: enemy 선택적 검증/직렬화, MapHud 노드 y 행수 비례 중앙정렬, TYPE_KO에 상점/휴식
- PickNode 타입 분기: shop→ShowShop, rest→ShowRest, 그 외→StartCombat
- 상점: ShowShop(카드3 무작위)·RenderShop·BuyCard(골드-30·RunDeck+1·재구매/부족 가드)
- 휴식: ShowRest(HP+30 상한 클램프)
- LeaveNode(상점/휴식 공용 나가기→ShowMap)
- UI: ShopHud(카드3·가격·골드·나가기)·RestHud(회복 정보·나가기), 상수 CARD_PRICE=30·REST_HEAL=30
- 메이커 Play 검증: 상점 구매(부족/재구매 무시 포함)·휴식 회복·맵 분기 정상
- 알려진 튜닝: 골드/승리 15 < 카드값 30 → 경제 밸런싱 필요(sim-balance 활용)
- 범위 밖: 카드 제거(덱 보기 UI)·유물(E5)·저장(E6)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

RootDesk/MyDesk/SlayDeckController.codeblock

@@ -238,6 +238,20 @@
           "SyncDirection": 0,
           "Attributes": [],
           "Name": "CurrentEnemyId"
+        },
+        {
+          "Type": "any",
+          "DefaultValue": "nil",
+          "SyncDirection": 0,
+          "Attributes": [],
+          "Name": "ShopChoices"
+        },
+        {
+          "Type": "any",
+          "DefaultValue": "nil",
+          "SyncDirection": 0,
+          "Attributes": [],
+          "Name": "ShopBought"
         }
       ],
       "Methods": [
@@ -265,7 +279,7 @@
             "Name": null
           },
           "Arguments": [],
-          "Code": "self.PlayerMaxHp = 80\nself.PlayerHp = self.PlayerMaxHp\nself.Gold = 0\nself.Floor = 0\nself.RunLength = 3\nself.RunDeck = { \"Strike\", \"Strike\", \"Strike\", \"Strike\", \"Strike\", \"Defend\", \"Defend\", \"Defend\", \"Defend\", \"Bash\" }\nself.RunActive = true\nself.Enemies = {\n\tslime = { name = \"슬라임\", maxHp = 45, intents = { { kind = \"Attack\", value = 10 }, { kind = \"Attack\", value = 6 }, { kind = \"Defend\", value = 8 } } },\n\tslime_elite = { name = \"정예 슬라임\", maxHp = 70, intents = { { kind = \"Attack\", value = 14 }, { kind = \"Attack\", value = 8 }, { kind = \"Defend\", value = 10 } } },\n\tslime_boss = { name = \"슬라임 킹\", maxHp = 120, intents = { { kind = \"Attack\", value = 18 }, { kind = \"Defend\", value = 12 }, { kind = \"Attack\", value = 10 }, { kind = \"Attack\", value = 22 } } },\n}\nself.MapNodes = {\n\tA = { type = \"combat\", enemy = \"slime\", row = 1, col = -1, next = { \"C\", \"D\" } },\n\tB = { type = \"combat\", enemy = \"slime\", row = 1, col = 1, next = { \"D\", \"E\" } },\n\tC = { type = \"elite\", enemy = \"slime_elite\", row = 2, col = -2, next = { \"BOSS\" } },\n\tD = { type = \"combat\", enemy = \"slime\", row = 2, col = 0, next = { \"BOSS\" } },\n\tE = { type = \"combat\", enemy = \"slime\", row = 2, col = 2, next = { \"BOSS\" } },\n\tBOSS = { type = \"boss\", enemy = \"slime_boss\", row = 3, col = 0, next = {  } },\n}\nself.MapStart = { \"A\", \"B\" }\nself.CurrentNodeId = \"\"\nself.CurrentEnemyId = \"\"\nself:BindButtons()\nself:ShowMap()",
+          "Code": "self.PlayerMaxHp = 80\nself.PlayerHp = self.PlayerMaxHp\nself.Gold = 0\nself.Floor = 0\nself.RunLength = 4\nself.RunDeck = { \"Strike\", \"Strike\", \"Strike\", \"Strike\", \"Strike\", \"Defend\", \"Defend\", \"Defend\", \"Defend\", \"Bash\" }\nself.RunActive = true\nself.Enemies = {\n\tslime = { name = \"슬라임\", maxHp = 45, intents = { { kind = \"Attack\", value = 10 }, { kind = \"Attack\", value = 6 }, { kind = \"Defend\", value = 8 } } },\n\tslime_elite = { name = \"정예 슬라임\", maxHp = 70, intents = { { kind = \"Attack\", value = 14 }, { kind = \"Attack\", value = 8 }, { kind = \"Defend\", value = 10 } } },\n\tslime_boss = { name = \"슬라임 킹\", maxHp = 120, intents = { { kind = \"Attack\", value = 18 }, { kind = \"Defend\", value = 12 }, { kind = \"Attack\", value = 10 }, { kind = \"Attack\", value = 22 } } },\n}\nself.MapNodes = {\n\tA = { type = \"combat\", enemy = \"slime\", row = 1, col = -1, next = { \"C\", \"D\" } },\n\tB = { type = \"combat\", enemy = \"slime\", row = 1, col = 1, next = { \"C\", \"D\" } },\n\tC = { type = \"rest\", row = 2, col = -1, next = { \"E\", \"F\" } },\n\tD = { type = \"shop\", row = 2, col = 1, next = { \"E\", \"F\" } },\n\tE = { type = \"elite\", enemy = \"slime_elite\", row = 3, col = -1, next = { \"BOSS\" } },\n\tF = { type = \"combat\", enemy = \"slime\", row = 3, col = 1, next = { \"BOSS\" } },\n\tBOSS = { type = \"boss\", enemy = \"slime_boss\", row = 4, col = 0, next = {  } },\n}\nself.MapStart = { \"A\", \"B\" }\nself.CurrentNodeId = \"\"\nself.CurrentEnemyId = \"\"\nself:BindButtons()\nself:ShowMap()",
           "Scope": 2,
           "ExecSpace": 6,
           "Attributes": [],
@@ -318,7 +332,7 @@
             "Name": null
           },
           "Arguments": [],
-          "Code": "local endTurn = _EntityService:GetEntityByPath(\"/ui/DefaultGroup/DeckHud/EndTurnButton\")\nif endTurn ~= nil and endTurn.ButtonComponent ~= nil then\n\tif self.EndTurnHandler ~= nil then\n\t\tendTurn:DisconnectEvent(ButtonClickEvent, self.EndTurnHandler)\n\t\tself.EndTurnHandler = nil\n\tend\n\tself.EndTurnHandler = endTurn:ConnectEvent(ButtonClickEvent, function() self:EndPlayerTurn() end)\nend\nfor i = 1, 5 do\n\tlocal cardEntity = _EntityService:GetEntityByPath(\"/ui/DefaultGroup/CardHand/Card\" .. tostring(i))\n\tif cardEntity ~= nil and cardEntity.ButtonComponent ~= nil then\n\t\tcardEntity:ConnectEvent(ButtonClickEvent, function() self:PlayCard(i) end)\n\tend\nend\nfor i = 1, 3 do\n\tlocal rc = _EntityService:GetEntityByPath(\"/ui/DefaultGroup/RewardHud/Reward\" .. tostring(i))\n\tif rc ~= nil and rc.ButtonComponent ~= nil then\n\t\trc:ConnectEvent(ButtonClickEvent, function() self:PickReward(i) end)\n\tend\nend\nlocal skip = _EntityService:GetEntityByPath(\"/ui/DefaultGroup/RewardHud/Skip\")\nif skip ~= nil and skip.ButtonComponent ~= nil then\n\tskip:ConnectEvent(ButtonClickEvent, function() self:PickReward(0) end)\nend\nlocal mapNodeIds = { \"A\", \"B\", \"C\", \"D\", \"E\", \"BOSS\" }\nfor i = 1, #mapNodeIds do\n\tlocal nid = mapNodeIds[i]\n\tlocal mn = _EntityService:GetEntityByPath(\"/ui/DefaultGroup/MapHud/Node_\" .. nid)\n\tif mn ~= nil and mn.ButtonComponent ~= nil then\n\t\tmn:ConnectEvent(ButtonClickEvent, function() self:PickNode(nid) end)\n\tend\nend",
+          "Code": "local endTurn = _EntityService:GetEntityByPath(\"/ui/DefaultGroup/DeckHud/EndTurnButton\")\nif endTurn ~= nil and endTurn.ButtonComponent ~= nil then\n\tif self.EndTurnHandler ~= nil then\n\t\tendTurn:DisconnectEvent(ButtonClickEvent, self.EndTurnHandler)\n\t\tself.EndTurnHandler = nil\n\tend\n\tself.EndTurnHandler = endTurn:ConnectEvent(ButtonClickEvent, function() self:EndPlayerTurn() end)\nend\nfor i = 1, 5 do\n\tlocal cardEntity = _EntityService:GetEntityByPath(\"/ui/DefaultGroup/CardHand/Card\" .. tostring(i))\n\tif cardEntity ~= nil and cardEntity.ButtonComponent ~= nil then\n\t\tcardEntity:ConnectEvent(ButtonClickEvent, function() self:PlayCard(i) end)\n\tend\nend\nfor i = 1, 3 do\n\tlocal rc = _EntityService:GetEntityByPath(\"/ui/DefaultGroup/RewardHud/Reward\" .. tostring(i))\n\tif rc ~= nil and rc.ButtonComponent ~= nil then\n\t\trc:ConnectEvent(ButtonClickEvent, function() self:PickReward(i) end)\n\tend\nend\nlocal skip = _EntityService:GetEntityByPath(\"/ui/DefaultGroup/RewardHud/Skip\")\nif skip ~= nil and skip.ButtonComponent ~= nil then\n\tskip:ConnectEvent(ButtonClickEvent, function() self:PickReward(0) end)\nend\nlocal mapNodeIds = { \"A\", \"B\", \"C\", \"D\", \"E\", \"F\", \"BOSS\" }\nfor i = 1, #mapNodeIds do\n\tlocal nid = mapNodeIds[i]\n\tlocal mn = _EntityService:GetEntityByPath(\"/ui/DefaultGroup/MapHud/Node_\" .. nid)\n\tif mn ~= nil and mn.ButtonComponent ~= nil then\n\t\tmn:ConnectEvent(ButtonClickEvent, function() self:PickNode(nid) end)\n\tend\nend\nfor i = 1, 3 do\n\tlocal sc = _EntityService:GetEntityByPath(\"/ui/DefaultGroup/ShopHud/Card\" .. tostring(i))\n\tif sc ~= nil and sc.ButtonComponent ~= nil then\n\t\tsc:ConnectEvent(ButtonClickEvent, function() self:BuyCard(i) end)\n\tend\nend\nlocal shopLeave = _EntityService:GetEntityByPath(\"/ui/DefaultGroup/ShopHud/Leave\")\nif shopLeave ~= nil and shopLeave.ButtonComponent ~= nil then\n\tshopLeave:ConnectEvent(ButtonClickEvent, function() self:LeaveNode() end)\nend\nlocal restLeave = _EntityService:GetEntityByPath(\"/ui/DefaultGroup/RestHud/Leave\")\nif restLeave ~= nil and restLeave.ButtonComponent ~= nil then\n\trestLeave:ConnectEvent(ButtonClickEvent, function() self:LeaveNode() end)\nend",
           "Scope": 2,
           "ExecSpace": 6,
           "Attributes": [],
@@ -847,11 +861,94 @@
               "Name": "id"
             }
           ],
-          "Code": "if self.RunActive ~= true then\n\treturn\nend\nif self:IsReachable(id) ~= true then\n\treturn\nend\nself.CurrentNodeId = id\nself.CurrentEnemyId = self.MapNodes[id].enemy\nlocal hud = _EntityService:GetEntityByPath(\"/ui/DefaultGroup/MapHud\")\nif hud ~= nil then\n\thud.Enable = false\nend\nself:StartCombat()",
+          "Code": "if self.RunActive ~= true then\n\treturn\nend\nif self:IsReachable(id) ~= true then\n\treturn\nend\nself.CurrentNodeId = id\nlocal hud = _EntityService:GetEntityByPath(\"/ui/DefaultGroup/MapHud\")\nif hud ~= nil then\n\thud.Enable = false\nend\nlocal node = self.MapNodes[id]\nif node.type == \"shop\" then\n\tself:ShowShop()\nelseif node.type == \"rest\" then\n\tself:ShowRest()\nelse\n\tself.CurrentEnemyId = node.enemy\n\tself:StartCombat()\nend",
           "Scope": 2,
           "ExecSpace": 6,
           "Attributes": [],
           "Name": "PickNode"
+        },
+        {
+          "Return": {
+            "Type": "void",
+            "DefaultValue": null,
+            "SyncDirection": 0,
+            "Attributes": [],
+            "Name": null
+          },
+          "Arguments": [],
+          "Code": "local pool = {}\nfor cid, _ in pairs(self.Cards) do\n\ttable.insert(pool, cid)\nend\nself.ShopChoices = {}\nself.ShopBought = { false, false, false }\nfor i = 1, 3 do\n\tself.ShopChoices[i] = pool[math.random(1, #pool)]\nend\nself:RenderShop()\nlocal hud = _EntityService:GetEntityByPath(\"/ui/DefaultGroup/ShopHud\")\nif hud ~= nil then\n\thud.Enable = true\nend",
+          "Scope": 2,
+          "ExecSpace": 6,
+          "Attributes": [],
+          "Name": "ShowShop"
+        },
+        {
+          "Return": {
+            "Type": "void",
+            "DefaultValue": null,
+            "SyncDirection": 0,
+            "Attributes": [],
+            "Name": null
+          },
+          "Arguments": [],
+          "Code": "self:SetText(\"/ui/DefaultGroup/ShopHud/Gold\", \"골드 \" .. string.format(\"%d\", self.Gold))\nfor i = 1, 3 do\n\tlocal cid = self.ShopChoices[i]\n\tlocal c = self.Cards[cid]\n\tlocal base = \"/ui/DefaultGroup/ShopHud/Card\" .. tostring(i)\n\tif c ~= nil then\n\t\tself:SetText(base .. \"/Name\", c.name)\n\t\tself:SetText(base .. \"/Cost\", tostring(c.cost))\n\t\tself:SetText(base .. \"/Desc\", c.desc)\n\t\tself:SetText(base .. \"/Price\", string.format(\"%d\", 30) .. \" 골드\")\n\t\tlocal e = _EntityService:GetEntityByPath(base)\n\t\tif e ~= nil and e.SpriteGUIRendererComponent ~= nil then\n\t\t\tif self.ShopBought[i] == true then\n\t\t\t\te.SpriteGUIRendererComponent.Color = Color(0.2, 0.22, 0.26, 0.6)\n\t\t\telseif c.kind == \"Attack\" then\n\t\t\t\te.SpriteGUIRendererComponent.Color = Color(0.86, 0.42, 0.38, 1)\n\t\t\telseif c.kind == \"Skill\" then\n\t\t\t\te.SpriteGUIRendererComponent.Color = Color(0.42, 0.55, 0.85, 1)\n\t\t\telse\n\t\t\t\te.SpriteGUIRendererComponent.Color = Color(0.46, 0.68, 0.52, 1)\n\t\t\tend\n\t\tend\n\tend\nend",
+          "Scope": 2,
+          "ExecSpace": 6,
+          "Attributes": [],
+          "Name": "RenderShop"
+        },
+        {
+          "Return": {
+            "Type": "void",
+            "DefaultValue": null,
+            "SyncDirection": 0,
+            "Attributes": [],
+            "Name": null
+          },
+          "Arguments": [
+            {
+              "Type": "number",
+              "DefaultValue": null,
+              "SyncDirection": 0,
+              "Attributes": [],
+              "Name": "slot"
+            }
+          ],
+          "Code": "if self.ShopBought == nil or self.ShopBought[slot] == true then\n\treturn\nend\nif self.Gold < 30 then\n\treturn\nend\nself.Gold = self.Gold - 30\ntable.insert(self.RunDeck, self.ShopChoices[slot])\nself.ShopBought[slot] = true\nself:RenderShop()\nself:RenderRun()",
+          "Scope": 2,
+          "ExecSpace": 6,
+          "Attributes": [],
+          "Name": "BuyCard"
+        },
+        {
+          "Return": {
+            "Type": "void",
+            "DefaultValue": null,
+            "SyncDirection": 0,
+            "Attributes": [],
+            "Name": null
+          },
+          "Arguments": [],
+          "Code": "local old = self.PlayerHp\nself.PlayerHp = self.PlayerHp + 30\nif self.PlayerHp > self.PlayerMaxHp then\n\tself.PlayerHp = self.PlayerMaxHp\nend\nlocal healed = self.PlayerHp - old\nself:SetText(\"/ui/DefaultGroup/RestHud/Info\", \"HP \" .. string.format(\"%d\", old) .. \" → \" .. string.format(\"%d\", self.PlayerHp) .. \" (+\" .. string.format(\"%d\", healed) .. \")\")\nself:RenderCombat()\nlocal hud = _EntityService:GetEntityByPath(\"/ui/DefaultGroup/RestHud\")\nif hud ~= nil then\n\thud.Enable = true\nend",
+          "Scope": 2,
+          "ExecSpace": 6,
+          "Attributes": [],
+          "Name": "ShowRest"
+        },
+        {
+          "Return": {
+            "Type": "void",
+            "DefaultValue": null,
+            "SyncDirection": 0,
+            "Attributes": [],
+            "Name": null
+          },
+          "Arguments": [],
+          "Code": "local s = _EntityService:GetEntityByPath(\"/ui/DefaultGroup/ShopHud\")\nif s ~= nil then\n\ts.Enable = false\nend\nlocal r = _EntityService:GetEntityByPath(\"/ui/DefaultGroup/RestHud\")\nif r ~= nil then\n\tr.Enable = false\nend\nself:ShowMap()",
+          "Scope": 2,
+          "ExecSpace": 6,
+          "Attributes": [],
+          "Name": "LeaveNode"
         }
       ],
       "EntityEventHandlers": []