목공소·상위 자재·장터 다중 슬롯 (경제 확장)

- 신규 자원: 판자(목재5→1, 판매 8코인)·석재 블록(돌5→1, 판매 12코인)
- 목공소(회관 Lv3, 제작 적성 2슬롯): 품목 선택 후 재료 소모하며
  자동 반복 가공 — 부엌과 동일한 조작 문법, 수거는 생산 건물과 동일
- 장터 증축: Lv1~3 = 판매 슬롯 1~3개, 슬롯별 품목 독립 판매(분당 5개)
  Lv2 비용 목재200+돌80, Lv3 비용 판자30+블록15
- 회관 Lv4 해금: 목공소 건설 + 판자60·블록40 + Lv8 고양이 2 (수용 12)
- HUD 판자·블록 필(목공소 보유 시), 채석장 회수 버튼 돌 이모지 수정
- 마이그레이션: sellKey→sellKeys[], resources.plank/block, craftKey
- 목공소 건물 이미지·아이콘은 임시(창고 변형) — 전용 에셋 교체 예정

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/components/game/Game.tsx

@@ -27,6 +27,8 @@ import {
   HALL_LEVELS,
   ICON_IMG,
   KITCHEN_UPGRADE_COST,
+  CRAFT_RECIPES,
+  MARKET_LEVELS,
   MEAL_PRICES,
   mealCap,
   REROLL_COST,
@@ -38,8 +40,12 @@ import {
 } from "@/lib/game/data";
 import type { AptitudeKey, Building, Cat, GameState } from "@/lib/game/types";
 
-const RES_EMOJI: Record<string, string> = { fish: "🐟", wood: "🪵", stone: "🪨" };
-const RES_LABEL: Record<string, string> = { fish: "생선", wood: "목재", stone: "돌" };
+const RES_EMOJI: Record<string, string> = {
+  fish: "🐟", wood: "🪵", stone: "🪨", plank: "🪚", block: "🧱",
+};
+const RES_LABEL: Record<string, string> = {
+  fish: "생선", wood: "목재", stone: "돌", plank: "판자", block: "석재 블록",
+};
 
 // ---------- 튜토리얼 ----------
 interface TutStep {
@@ -292,6 +298,14 @@ export default function Game() {
                   ["🐟", ICON_IMG.fish, Math.floor(state.resources.fish)],
                   ["🪵", ICON_IMG.wood, Math.floor(state.resources.wood)],
                   ["🪨", ICON_IMG.stone, Math.floor(state.resources.stone)],
+                  ...(state.buildings.some((b) => b.type === "workshop") ||
+                  (state.resources.plank ?? 0) > 0 ||
+                  (state.resources.block ?? 0) > 0
+                    ? ([
+                        ["🪚", ICON_IMG.plank, Math.floor(state.resources.plank ?? 0)],
+                        ["🧱", ICON_IMG.block, Math.floor(state.resources.block ?? 0)],
+                      ] as Array<[string, string | null, string | number]>)
+                    : []),
                   ["🍖", ICON_IMG.meal, meals],
                   ["🪙", ICON_IMG.coin, Math.floor(state.coins ?? 0)],
                 ] as Array<[string, string | null, string | number]>
@@ -491,7 +505,11 @@ export default function Game() {
             onUpgradeKitchen={() => run(() => engine.upgradeKitchen())}
             highlightAssign={tutTarget === "assign"}
             onRush={() => run(() => engine.rushConstruction(openedBuilding.id))}
-            onSetSell={(key) => run(() => engine.setSellKey(openedBuilding.id, key))}
+            onSetSell={(slot, key) =>
+              run(() => engine.setSellSlot(openedBuilding.id, slot, key))
+            }
+            onUpgradeMarket={() => run(() => engine.upgradeMarket())}
+            onSetCraft={(key) => run(() => engine.setCraftKey(openedBuilding.id, key))}
             onMove={() => {
               setPanel(null);
               setPlacing({
@@ -827,6 +845,8 @@ function BuildingPanel({
   highlightAssign,
   onRush,
   onSetSell,
+  onUpgradeMarket,
+  onSetCraft,
 }: {
   building: Building;
   state: GameState;
@@ -837,7 +857,9 @@ function BuildingPanel({
   onMove: () => void;
   highlightAssign?: boolean;
   onRush: () => void;
-  onSetSell: (key: string | null) => void;
+  onSetSell: (slot: number, key: string | null) => void;
+  onUpgradeMarket: () => void;
+  onSetCraft: (key: string | null) => void;
 }) {
   const isKitchen = building.type === "kitchen";
   const recipe = activeRecipe(state);
@@ -897,6 +919,8 @@ function BuildingPanel({
       { key: "fish", label: "🐟 생선", price: SELL_PRICES.fish, stock: Math.floor(state.resources.fish) },
       { key: "wood", label: "🪵 목재", price: SELL_PRICES.wood, stock: Math.floor(state.resources.wood) },
       { key: "stone", label: "🪨 돌", price: SELL_PRICES.stone, stock: Math.floor(state.resources.stone) },
+      { key: "plank", label: "🪚 판자", price: SELL_PRICES.plank, stock: Math.floor(state.resources.plank ?? 0) },
+      { key: "block", label: "🧱 석재 블록", price: SELL_PRICES.block, stock: Math.floor(state.resources.block ?? 0) },
       {
         key: "meals",
         label: `${recipe.emoji} 요리(${recipe.name})`,
@@ -906,41 +930,72 @@ function BuildingPanel({
           .reduce((sum, b) => sum + Math.floor(b.stored), 0),
       },
     ];
+    const sellKeys = building.sellKeys ?? [null];
+    const slots = Array.from({ length: building.level }, (_, i) => sellKeys[i] ?? null);
+    const nextMarket = MARKET_LEVELS[building.level + 1];
     return (
       <div className="space-y-4">
         <p className="text-sm text-[#6f5c39]">
-          판매 품목을 정하면 분당 5개씩 자동으로 팔아 냥코인을 벌어요. 가공한
-          요리일수록 값이 좋답니다!
+          슬롯마다 품목을 정하면 슬롯당 분당 5개씩 자동으로 팔아요. 가공한
+          자재·요리일수록 값이 좋답니다!
         </p>
         <div className="flex items-center justify-end">
           <button onClick={onMove} className="wood-plank shrink-0 px-2.5 py-1 text-xs hover:brightness-110">
             📍 이동
           </button>
         </div>
-        <div className="space-y-2">
+        {slots.map((sel, slotIdx) => (
+          <div key={slotIdx} className="space-y-1.5">
+            <div className="font-jua text-xs text-[#8a6316]">
+              📦 판매 슬롯 {slotIdx + 1}
+              {sel && (
+                <span className="font-num ml-1.5 text-[10px] text-[#5c8a2a]">
+                  {options.find((o) => o.key === sel)?.label} 판매 중
+                </span>
+              )}
+            </div>
+            <div className="grid grid-cols-3 gap-1.5">
               {options.map((o) => (
                 <button
                   key={o.key}
-              onClick={() => onSetSell(building.sellKey === o.key ? null : o.key)}
-              className={`card-nature flex w-full items-center justify-between px-3.5 py-2.5 text-sm hover:brightness-105 ${
-                building.sellKey === o.key ? "tut-highlight" : ""
+                  onClick={() => onSetSell(slotIdx, sel === o.key ? null : o.key)}
+                  title={`개당 🪙${o.price} · 재고 ${o.stock}`}
+                  className={`card-nature px-1.5 py-1.5 text-center text-xs hover:brightness-105 ${
+                    sel === o.key ? "tut-highlight" : ""
                   }`}
                 >
-              <span className="font-jua text-[#3f2c14]">{o.label}</span>
-              <span className="font-num text-xs text-[#8a6316]">
-                개당 🪙{o.price} · 재고 {o.stock}
-                {building.sellKey === o.key && " · 판매 중!"}
-              </span>
+                  <div className="font-jua text-[#3f2c14]">{o.label}</div>
+                  <div className="font-num text-[10px] text-[#8a6316]">
+                    🪙{o.price} · {o.stock}
+                  </div>
                 </button>
               ))}
             </div>
-        {!building.sellKey && (
+          </div>
+        ))}
+        {slots.every((k) => !k) && (
           <p className="text-center text-xs text-[#a3906c]">지금은 아무것도 팔지 않아요</p>
         )}
+        {nextMarket && (
+          <button
+            onClick={onUpgradeMarket}
+            className="amber-btn w-full py-2 text-sm"
+          >
+            ⬆️ 장터 Lv{building.level + 1} 증축 — 판매 슬롯 +1 (
+            {Object.entries(nextMarket.cost)
+              .map(([k, v]) => `${RES_EMOJI[k] ?? k}${v}`)
+              .join(" ")}
+            )
+          </button>
+        )}
+        {!nextMarket && (
+          <p className="text-center text-xs text-[#a3906c]">최고 레벨 장터예요! (슬롯 3개)</p>
+        )}
       </div>
     );
   }
 
+
   if (building.maxSlots === 0) {
     // 패시브 건물 — 배치 없음
     const restingHere = state.cats.filter((c) => c.state === "resting");
@@ -993,6 +1048,37 @@ function BuildingPanel({
   return (
     <div className="space-y-5">
       {/* 정보 */}
+      {building.type === "workshop" && (
+        <div className="space-y-2">
+          <p className="text-sm text-[#6f5c39]">
+            품목을 정하면 배치된 고양이가 재료를 소모하며 계속 가공해요.
+          </p>
+          {CRAFT_RECIPES.map((r) => {
+            const active = building.craftKey === r.key;
+            return (
+              <button
+                key={r.key}
+                onClick={() => onSetCraft(active ? null : r.key)}
+                className={`card-nature flex w-full items-center justify-between px-3.5 py-2.5 text-sm hover:brightness-105 ${
+                  active ? "tut-highlight" : ""
+                }`}
+              >
+                <span className="font-jua text-[#3f2c14]">
+                  {r.emoji} {r.name}
+                </span>
+                <span className="font-num text-xs text-[#8a6316]">
+                  {Object.entries(r.input)
+                    .map(([k, v]) => `${RES_EMOJI[k] ?? k}${v}`)
+                    .join(" ")}{" "}
+                  → 1개 · 판매 🪙{SELL_PRICES[r.key]}
+                  {active && " · 생산 중!"}
+                </span>
+              </button>
+            );
+          })}
+        </div>
+      )}
+
       <div className="card-nature px-4 py-3 text-sm leading-relaxed">
         <div className="flex items-center justify-between">
           <span>
@@ -1026,6 +1112,25 @@ function BuildingPanel({
               />
             </div>
           </>
+        ) : building.type === "workshop" ? (
+          (() => {
+            const craft = CRAFT_RECIPES.find((r) => r.key === building.craftKey);
+            return (
+              <>
+                <div>가공 속도 {totalRate.toFixed(2)}/초</div>
+                {craft && (
+                  <div className="bar-track mt-1 h-2 w-full">
+                    <div
+                      className="bar-fill-amber"
+                      style={{
+                        width: `${Math.min(100, ((building.progress ?? 0) / craft.work) * 100)}%`,
+                      }}
+                    />
+                  </div>
+                )}
+              </>
+            );
+          })()
         ) : (
           <div>생산 속도 {totalRate.toFixed(2)}/초</div>
         )}
@@ -1073,7 +1178,12 @@ function BuildingPanel({
           disabled={stored <= 0}
           className="amber-btn w-full py-2.5 text-sm disabled:cursor-not-allowed disabled:opacity-40"
         >
-          {building.resource === "fish" ? "🐟" : "🪵"} {stored}개 회수
+          {RES_EMOJI[
+            (building.type === "workshop"
+              ? (building.craftKey ?? "wood")
+              : (building.resource ?? "wood")) as string
+          ] ?? "📦"}{" "}
+          {stored}개 회수
         </button>
       )}
 

src/components/game/VillageView.tsx

@@ -24,8 +24,18 @@ import type {
   ResourceKey,
 } from "@/lib/game/types";
 
-const RES_EMOJI: Record<ResourceKey, string> = { fish: "🐟", wood: "🪵", stone: "🪨" };
-const RES_ICON: Record<ResourceKey, string> = { fish: "fish", wood: "wood", stone: "stone" };
+const RES_EMOJI: Record<ResourceKey, string> = {
+  fish: "🐟", wood: "🪵", stone: "🪨", plank: "🪚", block: "🧱",
+};
+const RES_ICON: Record<ResourceKey, string> = {
+  fish: "fish", wood: "wood", stone: "stone", plank: "plank", block: "block",
+};
+/** 건물이 산출하는 자원 키 (목공소는 선택 품목) */
+const resourceOf = (b: Building): ResourceKey | null =>
+  b.type === "workshop"
+    ? ((b.craftKey as ResourceKey | null) ?? null)
+    : (b.resource ?? null);
+
 const EMOJI_TO_NATURE: Record<string, string> = {
   "🌼": "daisy", "🌷": "tulip", "🌾": "wheat", "🍄": "mushroom", "🪨": "rock",
 };
@@ -426,7 +436,7 @@ export default function VillageView({
             if (b && catRate(cat, b.aptitude) > 0) {
               bubblesRef.current.push({
                 x: anim.x, y: anim.y - 34, born: now,
-                icon: b.type === "kitchen" ? "pan" : RES_ICON[b.resource ?? "fish"],
+                icon: b.type === "kitchen" ? "pan" : RES_ICON[resourceOf(b) ?? "fish"],
               });
             }
           }
@@ -759,7 +769,7 @@ export default function VillageView({
             if (stored > 0) {
               drawPlankBadge(
                 x, y - imgW * 0.55, `${stored}`,
-                isKitchen ? "meal" : RES_ICON[b.resource ?? "fish"],
+                isKitchen ? "meal" : RES_ICON[resourceOf(b) ?? "fish"],
               );
             }
           },
@@ -1006,16 +1016,17 @@ export default function VillageView({
         if (r.kind !== "collect" || !hit(r)) continue;
         const s = engine.peek();
         const b = s?.buildings.find((bb) => bb.id === r.id);
-        if (b && b.resource && Math.floor(b.stored) > 0 && s) {
-          const before = Math.floor(s.resources[b.resource]);
+        const resKey = b ? resourceOf(b) : null;
+        if (b && resKey && Math.floor(b.stored) > 0 && s) {
+          const before = Math.floor(s.resources[resKey]);
           const err = engine.collect(r.id);
           engine.save();
-          const gained = Math.floor(s.resources[b.resource]) - before;
+          const gained = Math.floor(s.resources[resKey]) - before;
           bubblesRef.current.push({
             x: r.x + r.w / 2, y: r.y, born: performance.now(),
             ...(err
               ? { text: "📦 창고 가득!" }
-              : { icon: RES_ICON[b.resource], text: `+${gained}` }),
+              : { icon: RES_ICON[resKey], text: `+${gained}` }),
           });
         }
         return;

src/lib/game/data.ts

@@ -35,6 +35,7 @@ export const BUILDING_IMG: Record<string, string> = {
   sun_deck: "/assets/buildings/sun_deck.png",
   market: "/assets/buildings/market.png",
   warehouse: "/assets/buildings/warehouse.png",
+  workshop: "/assets/buildings/workshop.png",
 };
 
 // 자연 소품 일러스트 (public/assets/nature/)
@@ -58,6 +59,8 @@ export const ICON_IMG: Record<string, string> = {
   meal: "/assets/icons/meal.png",
   coin: "/assets/icons/coin.png",
   hammer: "/assets/icons/hammer.png",
+  plank: "/assets/icons/plank.png",
+  block: "/assets/icons/block.png",
   sweat: "/assets/icons/sweat.png",
   plate: "/assets/icons/plate.png",
   sleep: "/assets/icons/sleep.png",
@@ -158,6 +161,7 @@ export const FOOTPRINTS: Record<string, { w: number; h: number }> = {
   sun_deck: { w: 2, h: 2 },
   market: { w: 2, h: 2 },
   warehouse: { w: 2, h: 2 },
+  workshop: { w: 2, h: 2 },
 };
 export const footprintOf = (type: string) => FOOTPRINTS[type] ?? { w: 1, h: 1 };
 
@@ -192,7 +196,8 @@ export interface BuildDef {
     | "cat_house"
     | "sun_deck"
     | "market"
-    | "warehouse";
+    | "warehouse"
+    | "workshop";
   kind?: "work" | "passive"; // passive: 고양이 배치 없음 (기본 work)
   name: string;
   emoji: string;
@@ -246,6 +251,11 @@ export const BUILD_DEFS: BuildDef[] = [
     aptitude: "crafting", maxSlots: 0, cost: { wood: 200, stone: 100 }, reqHallLv: 3, buildTime: 120,
     desc: "자원 보관 상한을 +500 늘려줍니다. 꽉 찬 창고는 생산을 멈추게 해요.",
   },
+  {
+    id: "workshop_1", type: "workshop", name: "목공소", emoji: "🪚",
+    aptitude: "crafting", maxSlots: 2, cost: { wood: 150, stone: 80 }, reqHallLv: 3, buildTime: 120,
+    desc: "제작 적성 고양이가 목재·돌을 판자와 석재 블록으로 가공합니다. 회관 Lv4의 열쇠!",
+  },
 ];
 
 // ---------- 꾸미기 (바닥 장식) ----------
@@ -302,6 +312,32 @@ export const mealCap = (kitchenLv: number) =>
 export const EAT_THRESHOLD = 65; // 이 포만도 이하면 먹으러 감
 export const FULLNESS_DECAY_PER_SEC = 0.03; // × 식욕 수치
 
+// ---------- 목공소 (상위 자재 가공) ----------
+
+export interface CraftDef {
+  key: "plank" | "block";
+  name: string;
+  emoji: string;
+  input: Partial<Record<"fish" | "wood" | "stone", number>>;
+  work: number; // 1개당 필요 작업량
+}
+
+export const CRAFT_RECIPES: CraftDef[] = [
+  { key: "plank", name: "판자", emoji: "🪚", input: { wood: 5 }, work: 6 },
+  { key: "block", name: "석재 블록", emoji: "🧱", input: { stone: 5 }, work: 8 },
+];
+
+// ---------- 장터 증축 (레벨 = 판매 슬롯 수) ----------
+
+export const MARKET_LEVELS: Record<
+  number,
+  { cost: Partial<Record<"fish" | "wood" | "stone" | "plank" | "block", number>> }
+> = {
+  2: { cost: { wood: 200, stone: 80 } },
+  3: { cost: { plank: 30, block: 15 } },
+};
+export const MARKET_MAX_LEVEL = 3;
+
 // ---------- 경제 (Phase C) ----------
 
 // 판매가 (개당 냥코인)
@@ -309,6 +345,8 @@ export const SELL_PRICES: Record<string, number> = {
   fish: 1,
   wood: 2,
   stone: 3,
+  plank: 8, // 목재 5 → 판자 1: 원자재 대비 압축·부가가치
+  block: 12,
 };
 // 요리 판매가 (레시피 키 기준)
 export const MEAL_PRICES: Record<string, number> = {
@@ -341,9 +379,9 @@ export const STRIKE_RESUME = 40; // 이 이상 회복되면 복귀
 
 export interface HallLevelDef {
   capacity: number;
-  cost: Partial<Record<"fish" | "wood" | "stone", number>>;
+  cost: Partial<Record<"fish" | "wood" | "stone" | "plank" | "block", number>>;
   reqCat?: { level: number; count: number };
-  reqBuildings?: Array<{ type: "quarry" | "kitchen"; level?: number; label: string }>;
+  reqBuildings?: Array<{ type: "quarry" | "kitchen" | "workshop"; level?: number; label: string }>;
   locked?: string; // 아직 구현 안 된 선행 요소 안내
 }
 
@@ -358,8 +396,10 @@ export const HALL_LEVELS: Record<number, HallLevelDef> = {
     ],
   },
   4: {
-    capacity: 12, cost: { stone: 400 }, reqCat: { level: 8, count: 3 },
-    locked: "목공소(목판)가 추가된 뒤 해금됩니다",
+    capacity: 12,
+    cost: { plank: 60, block: 40 },
+    reqCat: { level: 8, count: 2 },
+    reqBuildings: [{ type: "workshop", label: "목공소 건설" }],
   },
 };
 

src/lib/game/engine.ts

@@ -37,6 +37,9 @@ import {
   HALL_TILE,
   isWaterTile,
   KITCHEN_UPGRADE_COST,
+  CRAFT_RECIPES,
+  MARKET_LEVELS,
+  MARKET_MAX_LEVEL,
   mealCap,
   PASSIVES,
   PLACEMENT_RULES,
@@ -48,7 +51,9 @@ import {
 import type { BuildingType } from "./types";
 
 const SAVE_KEY = "cat-village-save";
-const RES_LABEL: Record<string, string> = { fish: "생선", wood: "목재", stone: "돌" };
+const RES_LABEL: Record<string, string> = {
+  fish: "생선", wood: "목재", stone: "돌", plank: "판자", block: "석재 블록",
+};
 const APTITUDE_KEYS: AptitudeKey[] = [
   "fishing", "logging", "mining", "foraging", "cooking", "crafting", "grooming",
 ];
@@ -124,7 +129,7 @@ function createInitialState(): GameState {
     boardVersion: BOARD_VERSION,
     tutorialStep: 0,
     coins: 0,
-    resources: { fish: 0, wood: 0, stone: 0 },
+    resources: { fish: 0, wood: 0, stone: 0, plank: 0, block: 0 },
     cats: [],
     buildings: [],
     decors: [],
@@ -308,6 +313,16 @@ export const engine = {
     if (!state) state = createInitialState();
     // 구버전 세이브 마이그레이션 (필드 보강)
     state.resources.stone ??= 0;
+    state.resources.plank ??= 0;
+    state.resources.block ??= 0;
+    for (const b of state.buildings) {
+      // 장터: 단일 sellKey → 슬롯 배열 (레벨 = 슬롯 수)
+      if (b.type === "market" && b.sellKeys === undefined) {
+        b.sellKeys = [b.sellKey ?? null];
+        b.sellKey = undefined;
+      }
+      if (b.type === "workshop") b.craftKey ??= null;
+    }
     for (const cat of state.cats) {
       cat.aptitudePoints ??= 0;
       cat.status.energy ??= cat.stats.stamina;
@@ -456,38 +471,59 @@ export const engine = {
           building.stored += 1;
           building.progress -= recipe.work;
         }
-      } else {
+      } else if (building.type === "workshop") {
+        // 목공소: 선택 품목을 재료 소모하며 반복 가공 (부엌과 동일 패턴)
+        const recipe = CRAFT_RECIPES.find((r) => r.key === building.craftKey);
+        if (recipe) {
+          building.progress = (building.progress ?? 0) + produced;
+          while (building.progress >= recipe.work) {
+            if (
+              building.stored >= BUILDING_STORE_CAP ||
+              !canConsume(state, recipe.input)
+            ) {
+              building.progress = recipe.work; // 재료·적재 대기
+              break;
+            }
+            consume(state, recipe.input);
+            building.stored += 1;
+            building.progress -= recipe.work;
+          }
+        }
+      } else if (building.type !== "market") {
         // 건물 적재 한도 — 가득 차면 생산 정지 (회수 유도)
         building.stored = Math.min(BUILDING_STORE_CAP, building.stored + produced);
       }
       // 장터: 자동 판매
-      if (
-        building.type === "market" &&
-        building.sellKey &&
-        !isUnderConstruction(building)
-      ) {
+      if (building.type === "market" && !isUnderConstruction(building)) {
+        const keys = (building.sellKeys ?? []).filter(Boolean) as string[];
+        if (keys.length > 0) {
           building.progress = (building.progress ?? 0) + MARKET_RATE_PER_SEC * dt;
           while (building.progress >= 1) {
-          let sold = false;
-          if (building.sellKey === "meals") {
+            // 슬롯당 1개씩 동시 판매 (슬롯별 분당 5개)
+            let soldAny = false;
+            for (const sellKey of keys) {
+              if (sellKey === "meals") {
                 const kitchen = state.buildings.find(
                   (b) => b.type === "kitchen" && b.stored >= 1,
                 );
                 if (kitchen) {
                   kitchen.stored -= 1;
                   state.coins =
-                (state.coins ?? 0) + (MEAL_PRICES[activeRecipe(state).key] ?? 4);
-              sold = true;
+                    (state.coins ?? 0) +
+                    (MEAL_PRICES[activeRecipe(state).key] ?? 4);
+                  soldAny = true;
                 }
               } else {
-            const key = building.sellKey as keyof GameState["resources"];
+                const key = sellKey as keyof GameState["resources"];
                 if (state.resources[key] >= 1) {
                   state.resources[key] -= 1;
-              state.coins = (state.coins ?? 0) + (SELL_PRICES[building.sellKey] ?? 1);
-              sold = true;
+                  state.coins =
+                    (state.coins ?? 0) + (SELL_PRICES[sellKey] ?? 1);
+                  soldAny = true;
                 }
               }
-          if (!sold) {
+            }
+            if (!soldAny) {
               building.progress = 1; // 팔 것이 없으면 대기
               break;
             }
@@ -495,6 +531,7 @@ export const engine = {
           }
         }
       }
+    }
 
     // 포만도 감소 (식욕 × 패시브)
     for (const cat of state.cats) {
@@ -685,12 +722,51 @@ export const engine = {
   },
 
   /** 장터 판매 품목 설정 */
-  setSellKey(marketId: string, key: string | null): string | null {
+  /** 장터 슬롯별 판매 품목 설정 */
+  setSellSlot(marketId: string, slot: number, key: string | null): string | null {
     if (!state) return null;
     const m = state.buildings.find((b) => b.id === marketId);
     if (!m || m.type !== "market") return null;
-    m.sellKey = key;
-    m.progress = 0;
+    m.sellKeys ??= [null];
+    if (slot < 0 || slot >= m.level) return null;
+    while (m.sellKeys.length < m.level) m.sellKeys.push(null);
+    m.sellKeys[slot] = key;
+    return null;
+  },
+
+  /** 장터 증축 (레벨 = 판매 슬롯 수) */
+  upgradeMarket(): string | null {
+    if (!state) return null;
+    const m = state.buildings.find((b) => b.type === "market");
+    if (!m) return "장터가 없습니다";
+    if (m.level >= MARKET_MAX_LEVEL) return "장터가 최고 레벨입니다";
+    const def = MARKET_LEVELS[m.level + 1];
+    if (!def) return "장터가 최고 레벨입니다";
+    const missing = Object.entries(def.cost).filter(
+      ([key, amount]) =>
+        state!.resources[key as keyof GameState["resources"]] < (amount ?? 0),
+    );
+    if (missing.length > 0)
+      return `자원이 부족합니다 (${missing
+        .map(([k, v]) => `${RES_LABEL[k] ?? k} ${v}`)
+        .join(", ")})`;
+    consume(state, def.cost);
+    m.level += 1;
+    m.sellKeys ??= [null];
+    while (m.sellKeys.length < m.level) m.sellKeys.push(null);
+    return null;
+  },
+
+  /** 목공소 생산 품목 설정 */
+  setCraftKey(workshopId: string, key: string | null): string | null {
+    if (!state) return null;
+    const w = state.buildings.find((b) => b.id === workshopId);
+    if (!w || w.type !== "workshop") return null;
+    if (key !== null && !CRAFT_RECIPES.some((r) => r.key === key)) return null;
+    if (w.craftKey !== key && Math.floor(w.stored) > 0)
+      return "먼저 쌓인 완성품을 수거해주세요";
+    w.craftKey = key;
+    w.progress = 0;
     return null;
   },
 
@@ -889,14 +965,19 @@ export const engine = {
   collect(buildingId: string): string | null {
     if (!state) return null;
     const building = state.buildings.find((b) => b.id === buildingId);
-    if (!building || !building.resource) return null; // 부엌은 회수 대상 아님
+    // 목공소는 선택 품목이, 생산 건물은 고정 자원이 회수 대상
+    const resKey =
+      building?.type === "workshop"
+        ? (building.craftKey as keyof GameState["resources"] | null)
+        : (building?.resource ?? null);
+    if (!building || !resKey) return null; // 부엌은 회수 대상 아님
     const cap = storageCap(state);
-    const space = Math.max(0, cap - Math.floor(state.resources[building.resource]));
+    const space = Math.max(0, cap - Math.floor(state.resources[resKey]));
     const amount = Math.min(Math.floor(building.stored), space);
     if (amount <= 0)
       return space <= 0 ? "창고가 가득 찼어요! 장터에서 팔거나 창고를 지어주세요" : null;
     building.stored -= amount;
-    state.resources[building.resource] += amount;
+    state.resources[resKey] += amount;
     return null;
   },
 

src/lib/game/types.ts

@@ -7,7 +7,7 @@ export type AptitudeKey =
   | "crafting"
   | "grooming";
 
-export type ResourceKey = "fish" | "wood" | "stone";
+export type ResourceKey = "fish" | "wood" | "stone" | "plank" | "block";
 
 export type BuildingType =
   | "dock"
@@ -17,7 +17,8 @@ export type BuildingType =
   | "cat_house"
   | "sun_deck"
   | "market"
-  | "warehouse";
+  | "warehouse"
+  | "workshop";
 
 export interface Cat {
   id: string;
@@ -59,7 +60,9 @@ export interface Building {
   stored: number; // 생산 건물: 회수 대기 산출물 / 부엌: 보관 중인 요리 수
   progress?: number; // 부엌: 현재 요리 진행 작업량
   constructionUntil?: number; // 건설 완료 예정 timestamp (없으면 완공 상태)
-  sellKey?: string | null; // 장터: 판매 품목 (fish/wood/stone/meals)
+  sellKey?: string | null; // (구버전) 장터 판매 품목 — sellKeys로 마이그레이션됨
+  sellKeys?: (string | null)[]; // 장터: 슬롯별 판매 품목 (레벨 = 슬롯 수)
+  craftKey?: string | null; // 목공소: 생산 품목 (plank/block)
 }
 
 export interface DecoTile {