feat(map): #363 메인 지도 SDK 국내(네이버)/해외(구글) 분기

- MapView dispatcher: NAVER 키 + KR bbox 좌표 → NaverMapView
- NaverMapView 신규 (네이버 v3 직접 wrapper, Supercluster 재사용)
- GoogleMapView 신규 (기존 MapView 내용 rename)
- MapView.types.ts 공용 타입 + isKoreaCoord 헬퍼
- Dockerfile/deploy.sh: NEXT_PUBLIC_NAVER_MAP_CLIENT_ID build-arg
- 키 미설정 시 GoogleMap fallback (회귀 0)

Refs: #363

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

CHANGELOG.md

@@ -4,8 +4,54 @@
 
 ---
 
+## 2026-06-16
+
+### 🗺️ #363 메인 지도 SDK 국내(네이버)/해외(구글) 분기 (v0.1.52)
+- MapView를 dispatcher로 전환: 좌표가 KR bbox + NAVER_MAP_CLIENT_ID 설정 시 NaverMapView, 그 외 GoogleMapView
+- NaverMapView 신규 (네이버 v3 직접 wrapper, Supercluster 재사용, 마커/클러스터/flyTo)
+- GoogleMapView 신규 (기존 MapView 내용 rename)
+- MapView.types.ts 공용 (MapBounds/FlyTo/MapViewProps + isKoreaCoord)
+- Dockerfile + deploy.sh: NEXT_PUBLIC_NAVER_MAP_CLIENT_ID build-arg 추가
+- 키 미설정 시 GoogleMap fallback (회귀 0)
+- 설계서: docs/design/363-map-sdk-branch/README.md
+- Refs: #363
+
+### 🗺️ 식당 상세 지도 링크 국내/해외 분기 (v0.1.51)
+- 좌표 기반 한국 판정 (WGS84 KR bbox 33~38.7°N, 124~132°E)
+- 국내: 네이버 지도 primary + Google Maps 보조 (네이버 URL은 신 도메인 /p/search/)
+- 해외: Google Maps 단독
+- 좌표 없으면 region 첫 토큰 fallback (구 데이터 호환)
+- frontend-only 배포
+
 ## 2026-06-15
 
+### 🐛 캐치테이블 URL 패턴 수정 (v0.1.50)
+- 실제 catchtable URL은 `app.catchtable.co.kr/ct/shop/...` 형식 (옛 `/shop/`, `/dining/`은 매칭 실패)
+- 첫 회차(v0.1.49) 캐치테이블 벌크 결과 1044건 전부 미발견(매핑 0%)의 원인
+- 패턴을 `catchtable.co.kr/ct/shop/`, `catchtable.co.kr/ct/dining/`로 교정 후 NONE 해제 + 재실행
+
+### 🐛 WebSearchService HTTP timeout 추가 (v0.1.49)
+- 벌크 백필 중 특정 검색에서 무한 hang → backend executor virtual thread 점유로 후속 작업 중단 (90건 처리 후 멈춤)
+- connectTimeout=5s + request timeout=15s (Naver/DDG 둘 다)
+- 해당 식당은 HttpTimeoutException → notfound로 안전 처리
+
+### ⏱️ bulk-tabling/catchtable SSE timeout 10분 → 3시간 (v0.1.48)
+- 대량 백필(724건 ≈ 100분) 시 10분 SSE timeout으로 중간 끊김 → 3시간으로 확장
+- 백엔드 작업은 virtual thread로 별도 진행됐지만 emit() 예외로 마지막 cache.flush + complete 누락이슈 해소
+
+### 🐛 #357 후속 — tabling-url validation에 www. 호스트 허용 (v0.1.47)
+- Naver/DDG 결과가 `https://www.tabling.co.kr/...` 형태인데 #290 validation은 `tabling.co.kr/`만 허용 → 단건 매핑 PUT 거부
+- bulk-tabling SSE는 validation 없이 service.update 직접 호출이라 통과 → 단일/벌크 불일치
+- `www.tabling.co.kr` prefix도 허용 (catchtable은 이미 app/www 둘 다 허용)
+- 시연 등록: bbq 부천은하마을점 → BBQ 치킨 부천은하마을점
+
+### 🔍 #359 1단계 — google_place_id 중복 조회 API (v0.1.46)
+- GET /api/admin/restaurants/duplicates/place-id (어드민 전용)
+- 응답: 그룹별 식당 + video/review/memo 카운트 (병합 의사결정 자료)
+- 정리/병합 + UNIQUE 제약은 별도 PR (데이터 위험 분리)
+- 설계서: docs/design/359a-duplicate-place-id-view/README.md
+- Refs: #359 (조회 단계 완료, 후속 분리 유지)
+
 ### 📋 #358 RestaurantUpdateDTO + @Valid 표준화 (v0.1.45)
 - dto/RestaurantUpdateDTO record 신규 (15 필드, 모두 nullable)
 - Bean Validation: @Size/@Pattern(URL or NONE)/@DecimalMin·Max/@Min·Max

backend-java/src/main/java/com/tasteby/controller/AdminRestaurantController.java

@@ -62,6 +62,15 @@ public class AdminRestaurantController {
         return Map.of("success", true, "id", id);
     }
 
+    // #359 1단계 — google_place_id 중복 조회 (정리/UNIQUE는 후속).
+    @GetMapping("/duplicates/place-id")
+    public Map<String, Object> duplicatePlaceIds() {
+        var admin = AuthUtil.requireAdmin();
+        var groups = restaurantService.findDuplicatePlaceIdGroups();
+        log.info("[ADMIN] {} duplicate place_id groups: {}", admin.getSubject(), groups.size());
+        return Map.of("groups", groups, "group_count", groups.size());
+    }
+
     /**
      * 어드민용 hidden 토글.
      */

backend-java/src/main/java/com/tasteby/controller/RestaurantController.java

@@ -175,7 +175,7 @@ public class RestaurantController {
     @PostMapping("/bulk-tabling")
     public SseEmitter bulkTabling() {
         AuthUtil.requireAdmin();
-        SseEmitter emitter = new SseEmitter(600_000L);
+        SseEmitter emitter = new SseEmitter(10_800_000L); // 3h — 대량 백필 대응
 
         executor.execute(() -> {
             try {
@@ -252,8 +252,11 @@ public class RestaurantController {
         if (r == null) throw new ResponseStatusException(HttpStatus.NOT_FOUND);
         String url = body.get("tabling_url");
         // #290 — javascript:/외부 악성 URL 차단. 빈 문자열은 매핑 해제로 허용.
-        if (url != null && !url.isBlank() && !url.startsWith("https://tabling.co.kr/")) {
+        // Naver/DDG 결과가 www.tabling.co.kr 형태로도 옴.
-            throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "테이블링 URL은 https://tabling.co.kr/ 만 허용");
+        if (url != null && !url.isBlank()
+                && !url.startsWith("https://tabling.co.kr/")
+                && !url.startsWith("https://www.tabling.co.kr/")) {
+            throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "테이블링 URL은 https://(www.)tabling.co.kr/ 만 허용");
         }
         restaurantService.update(id, Map.of("tabling_url", url != null ? url : ""));
         cache.flush();
@@ -306,7 +309,7 @@ public class RestaurantController {
     @PostMapping("/bulk-catchtable")
     public SseEmitter bulkCatchtable() {
         AuthUtil.requireAdmin();
-        SseEmitter emitter = new SseEmitter(600_000L);
+        SseEmitter emitter = new SseEmitter(10_800_000L); // 3h — 대량 백필 대응
 
         executor.execute(() -> {
             try {
@@ -420,9 +423,10 @@ public class RestaurantController {
     }
 
     private List<Map<String, Object>> searchCatchtable(String restaurantName) {
+        // 실제 캐치테이블 URL은 /ct/shop/ 형식. 옛 /dining/ /shop/ 패턴은 매칭 실패.
         return webSearch.search(
                 "site:app.catchtable.co.kr " + restaurantName,
-                "catchtable.co.kr/dining/", "catchtable.co.kr/shop/"
+                "catchtable.co.kr/ct/shop/", "catchtable.co.kr/ct/dining/"
         );
     }
 

backend-java/src/main/java/com/tasteby/mapper/RestaurantMapper.java

@@ -39,6 +39,9 @@ public interface RestaurantMapper {
 
     int countUnevaluatedLinks();
 
+    // #359 1단계 — google_place_id 중복 조회
+    List<Map<String, Object>> findDuplicatePlaceIdRows();
+
     Restaurant findById(@Param("id") String id);
 
     List<Map<String, Object>> findVideoLinks(@Param("restaurantId") String restaurantId,

backend-java/src/main/java/com/tasteby/service/RestaurantService.java

@@ -111,6 +111,23 @@ public class RestaurantService {
         return mapper.countUnevaluatedLinks();
     }
 
+    // #359 1단계 — google_place_id 중복 그룹 (참조 카운트 동봉)
+    public List<Map<String, Object>> findDuplicatePlaceIdGroups() {
+        var rows = mapper.findDuplicatePlaceIdRows().stream()
+                .map(JsonUtil::lowerKeys)
+                .toList();
+        Map<String, List<Map<String, Object>>> grouped = new LinkedHashMap<>();
+        for (var r : rows) {
+            String key = (String) r.get("google_place_id");
+            grouped.computeIfAbsent(key, k -> new ArrayList<>()).add(r);
+        }
+        List<Map<String, Object>> out = new ArrayList<>(grouped.size());
+        for (var e : grouped.entrySet()) {
+            out.add(Map.of("google_place_id", e.getKey(), "items", e.getValue()));
+        }
+        return out;
+    }
+
     public void update(String id, Map<String, Object> fields) {
         mapper.updateFields(id, fields);
     }

backend-java/src/main/java/com/tasteby/service/WebSearchService.java

@@ -14,6 +14,7 @@ import java.net.http.HttpClient;
 import java.net.http.HttpRequest;
 import java.net.http.HttpResponse;
 import java.nio.charset.StandardCharsets;
+import java.time.Duration;
 import java.util.*;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
@@ -30,8 +31,10 @@ public class WebSearchService {
     private static final Logger log = LoggerFactory.getLogger(WebSearchService.class);
     private static final int MAX_RESULTS = 5;
 
+    private static final Duration REQ_TIMEOUT = Duration.ofSeconds(15);
     private static final HttpClient HTTP = HttpClient.newBuilder()
             .followRedirects(HttpClient.Redirect.NORMAL)
+            .connectTimeout(Duration.ofSeconds(5))
             .build();
 
     private static final Pattern DDG_RESULT = Pattern.compile(
@@ -74,6 +77,7 @@ public class WebSearchService {
         String url = "https://openapi.naver.com/v1/search/webkr.json?query=" + encoded + "&display=30";
         HttpRequest req = HttpRequest.newBuilder()
                 .uri(URI.create(url))
+                .timeout(REQ_TIMEOUT)
                 .header("X-Naver-Client-Id", naverClientId)
                 .header("X-Naver-Client-Secret", naverClientSecret)
                 .GET()
@@ -104,6 +108,7 @@ public class WebSearchService {
         String url = "https://html.duckduckgo.com/html/?q=" + encoded;
         HttpRequest req = HttpRequest.newBuilder()
                 .uri(URI.create(url))
+                .timeout(REQ_TIMEOUT)
                 .header("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36")
                 .header("Accept", "text/html,application/xhtml+xml")
                 .header("Accept-Language", "ko-KR,ko;q=0.9")

backend-java/src/main/resources/mybatis/mapper/RestaurantMapper.xml

@@ -353,4 +353,21 @@
         SELECT COUNT(*) FROM video_restaurants WHERE relevance_evaluated_at IS NULL
     </select>
 
+    <!-- #359 1단계 — google_place_id 중복 조회 (그룹 식당 + 참조 카운트) -->
+    <select id="findDuplicatePlaceIdRows" resultType="map">
+        SELECT r.id, r.google_place_id, r.name, r.address,
+               TO_CHAR(r.created_at, 'YYYY-MM-DD"T"HH24:MI:SS') AS created_at,
+               r.hidden,
+               (SELECT COUNT(*) FROM video_restaurants vr WHERE vr.restaurant_id = r.id) AS video_count,
+               (SELECT COUNT(*) FROM user_reviews rv WHERE rv.restaurant_id = r.id) AS review_count,
+               (SELECT COUNT(*) FROM user_memos mm WHERE mm.restaurant_id = r.id) AS memo_count
+        FROM restaurants r
+        WHERE r.google_place_id IN (
+            SELECT google_place_id FROM restaurants
+            WHERE google_place_id IS NOT NULL
+            GROUP BY google_place_id HAVING COUNT(*) > 1
+        )
+        ORDER BY r.google_place_id, r.created_at
+    </select>
+
 </mapper>

deploy.sh

@@ -62,15 +62,18 @@ if [[ "$TARGET" == "all" || "$TARGET" == "frontend" ]]; then
   # Read build args from env or .env file
   MAPS_KEY="${NEXT_PUBLIC_GOOGLE_MAPS_API_KEY:-}"
   CLIENT_ID="${NEXT_PUBLIC_GOOGLE_CLIENT_ID:-}"
+  NAVER_MAP_ID="${NEXT_PUBLIC_NAVER_MAP_CLIENT_ID:-}"
 
   if [[ -f frontend/.env.local ]]; then
     MAPS_KEY="${MAPS_KEY:-$(grep NEXT_PUBLIC_GOOGLE_MAPS_API_KEY frontend/.env.local 2>/dev/null | cut -d= -f2)}"
     CLIENT_ID="${CLIENT_ID:-$(grep NEXT_PUBLIC_GOOGLE_CLIENT_ID frontend/.env.local 2>/dev/null | cut -d= -f2)}"
+    NAVER_MAP_ID="${NAVER_MAP_ID:-$(grep NEXT_PUBLIC_NAVER_MAP_CLIENT_ID frontend/.env.local 2>/dev/null | cut -d= -f2)}"
   fi
 
   docker build --platform "$PLATFORM" \
     --build-arg NEXT_PUBLIC_GOOGLE_MAPS_API_KEY="$MAPS_KEY" \
     --build-arg NEXT_PUBLIC_GOOGLE_CLIENT_ID="$CLIENT_ID" \
+    --build-arg NEXT_PUBLIC_NAVER_MAP_CLIENT_ID="$NAVER_MAP_ID" \
     -t "$REGISTRY/frontend:$TAG" \
     -t "$REGISTRY/frontend:latest" \
     frontend/

docs/design/359a-duplicate-place-id-view/README.md

@@ -0,0 +1,47 @@
+# 설계서: google_place_id 중복 조회 API (#359 1단계)
+
+> **상태**: Approved
+> **작성**: [AI] Architect · **최종수정**: 2026-06-15
+> **추적성** — Redmine: #359 · 1단계(조회 전용, 위험 0). 2단계(자동 병합) / 3단계(UNIQUE)는 별도 PR.
+> · 구현 파일: `backend-java/src/main/resources/mybatis/mapper/RestaurantMapper.xml`, `backend-java/src/main/java/com/tasteby/mapper/RestaurantMapper.java`, `backend-java/src/main/java/com/tasteby/service/RestaurantService.java`, `backend-java/src/main/java/com/tasteby/controller/AdminRestaurantController.java`
+> · 테스트: 본 범위 밖 (수동 — admin token으로 호출).
+
+## 1. 목적 (Why)
+
+같은 `google_place_id`에 다중 식당이 매핑된 경우 운영자가 어떤 것을 유지/병합할지 결정 필요. 본 단계는 **조회만** — 그룹과 후보 식당을 메타데이터(연결된 영상/리뷰/메모 수)와 함께 보여줘 의사결정 자료 제공.
+
+## 2. 범위
+
+- 포함: `GET /api/admin/restaurants/duplicates/place-id` — 운영자만, 그룹별 식당 + 카운트 동봉.
+- 제외 (별도 PR): 병합/삭제, UNIQUE constraint.
+
+## 3. 인수조건
+
+- [ ] requireAdmin 보호.
+- [ ] 응답 구조: `[{ google_place_id, items: [{ id, name, address, created_at, video_count, review_count, memo_count, hidden }] }]`.
+- [ ] 그룹은 `COUNT(*) > 1` 만 반환.
+
+## 4. SQL
+
+```sql
+SELECT r.id, r.google_place_id, r.name, r.address,
+       TO_CHAR(r.created_at, 'YYYY-MM-DD"T"HH24:MI:SS') AS created_at,
+       r.hidden,
+       (SELECT COUNT(*) FROM video_restaurants vr WHERE vr.restaurant_id = r.id) AS video_count,
+       (SELECT COUNT(*) FROM reviews rv WHERE rv.restaurant_id = r.id) AS review_count,
+       (SELECT COUNT(*) FROM memos mm WHERE mm.restaurant_id = r.id) AS memo_count
+FROM restaurants r
+WHERE r.google_place_id IN (
+    SELECT google_place_id FROM restaurants
+    WHERE google_place_id IS NOT NULL
+    GROUP BY google_place_id HAVING COUNT(*) > 1
+)
+ORDER BY r.google_place_id, r.created_at
+```
+
+Service 계층에서 google_place_id로 그룹핑하여 응답 구조 변환.
+
+## 5. 엣지케이스
+
+- 중복 0건 → 빈 배열.
+- 누군가가 google_place_id를 동시에 변경 중 → 다음 호출에서 반영 (캐시 X).

docs/design/363-map-sdk-branch/README.md

@@ -0,0 +1,84 @@
+# 설계서: 메인 지도 탭 SDK 국내/해외 분기 (#363)
+
+> **상태**: Approved
+> **작성**: [AI] Architect · **최종수정**: 2026-06-16
+> **추적성** — Redmine: #363 · 부모: v0.1.51 1단계(외부 링크 분기) · 관련: MapView.tsx, mobile nearby
+> · 구현 파일: `frontend/src/components/MapView.tsx`(dispatcher), `frontend/src/components/GoogleMapView.tsx`(rename from 기존 MapView 내용), `frontend/src/components/NaverMapView.tsx`(신규), `frontend/src/lib/map-utils.ts`(공용 헬퍼)
+> · 테스트: 본 범위 밖 (수동 — dev 브라우저 검증)
+
+## 1. 목적 (Why)
+
+현재 MapView는 `@vis.gl/react-google-maps` 단일 사용. 한국 식당은 네이버 지도가 지번/도로명/상호/길찾기에서 압도적으로 정확. 메인 지도 탭 자체를 국내/해외 분기.
+
+## 2. 범위
+
+- 포함: MapView를 dispatcher로 전환, 좌표 기반 자동 분기(KR bbox), 네이버 키 미설정 시 GoogleMap fallback.
+- 제외 (별도 후속): 사용자 강제 토글 UI, mixed 화면(한국+해외 동시) 최적화, 모바일 nearby도 동일 분기는 1차 적용 후 검토.
+
+## 3. 인수조건
+
+- [ ] `NEXT_PUBLIC_NAVER_MAP_CLIENT_ID` 환경변수 설정 + 화면 중심이 KR bbox 안이면 NaverMap 렌더.
+- [ ] 키 미설정 또는 화면이 KR 밖이면 GoogleMap 렌더 (현행 동일).
+- [ ] Supercluster + 클러스터/단일 마커 표시, 클릭 → onSelectRestaurant 콜백 동일.
+- [ ] flyTo, onBoundsChanged, 내 위치, 채널 색상 동일하게 동작.
+- [ ] 빌드/타입 회귀 없음.
+
+## 4. 컨텍스트 & 제약
+
+- 네이버 지도 v3: `https://oapi.map.naver.com/openapi/v3/maps.js?ncpClientId=<ID>` 스크립트 로드.
+- 네이버 좌표계: 기본 WGS84 (`naver.maps.LatLng(lat, lng)`).
+- 직접 wrapper 채택 (react-naver-maps 의존성 제거 — 메인터넌스 리스크).
+- Supercluster는 SDK 독립이라 재사용.
+- KR bbox: 위도 33~38.7, 경도 124~132. 화면 중심좌표가 안에 있으면 한국.
+
+## 5. 아키텍처 개요
+
+```
+MapView (dispatcher)
+   │
+   ├─ 화면 중심 좌표가 KR bbox AND 네이버 키 있음 → NaverMapView
+   │     ├─ <script src=naver maps v3> 동적 로드
+   │     ├─ useEffect: new naver.maps.Map(div, ...)
+   │     ├─ Supercluster로 cluster 계산 → markers div overlay
+   │     └─ flyTo: map.setCenter + setZoom
+   │
+   └─ 그 외 → GoogleMapView (기존 MapView 내용 그대로 이전)
+```
+
+## 6. 함수 명세
+
+| 함수 | 책임 | 비고 |
+|---|---|---|
+| `MapView` (dispatcher) | 좌표 기반 분기 | flyTo 또는 첫 마운트 좌표로 판정 |
+| `GoogleMapView` | 기존 MapView 내용 | rename만, 로직 변경 X |
+| `NaverMapView` | 신규 — 네이버 지도 + Supercluster + markers | wrapper 직접 |
+| `useNaverMaps(clientId)` | 스크립트 로드 + ready boolean | 한 번만 로드 |
+| `isKoreaBounds(lat, lng)` | KR bbox 판정 | map-utils 공용 |
+
+## 7. 흐름
+
+1. MapView 마운트 → flyTo or 첫 식당 평균 좌표로 초기 중심 계산.
+2. KR bbox + 키 있음 → NaverMapView 마운트.
+3. NaverMapView: `useNaverMaps` 훅으로 v3 스크립트 로드, ready되면 `new naver.maps.Map(divRef, options)` 생성.
+4. Supercluster로 cluster 계산 → 마커는 absolute positioned div overlay (네이버 OverlayView 또는 자체 좌표 변환).
+5. 사용자 줌/팬 → bounds_changed 이벤트 → 클러스터 재계산 + onBoundsChanged 콜백.
+
+## 8. 엣지케이스
+
+- **네이버 스크립트 로드 실패**: ready=false 유지, dispatcher가 다음 렌더 사이클에서 GoogleMap fallback.
+- **flyTo가 해외 좌표인데 현재 NaverMap 중**: dispatcher 재판정 → GoogleMap로 교체 (remount).
+- **mixed 화면(한국+해외 식당)**: 화면 중심 기준 SDK 선택 → 다른 나라 식당은 화면 밖에 있어 무관.
+- **키 미설정**: 항상 GoogleMap (회귀 0).
+
+## 9. 리스크 & 대안
+
+- **선택**: 직접 wrapper. 의존성 최소, 유지보수 자유.
+- **대안 A**: `react-naver-maps` npm — 빠른 시작이지만 메인터넌스 상태 불확실.
+- **대안 B**: 단일 SDK(Maplibre + 네이버 타일) — 타일 권리 이슈.
+- **트레이드오프**: 직접 wrapper는 초기 코드 양 ↑이지만 한 번 만들면 안정.
+
+## 10. 미해결 질문
+
+- 한 화면 mixed(국가 경계 근처) 동시 마커 — 후속.
+- 사용자 토글 UI — 후속.
+- 모바일 nearby 동일 분기 — 1차 적용 후 결정.

frontend/Dockerfile

@@ -6,6 +6,7 @@ RUN npm ci
 COPY . .
 ARG NEXT_PUBLIC_GOOGLE_MAPS_API_KEY
 ARG NEXT_PUBLIC_GOOGLE_CLIENT_ID
+ARG NEXT_PUBLIC_NAVER_MAP_CLIENT_ID
 RUN npm run build
 
 # ── Runtime stage ──

frontend/src/components/GoogleMapView.tsx

@@ -0,0 +1,395 @@
+"use client";
+
+import { useCallback, useEffect, useMemo, useRef, useState } from "react";
+import {
+  APIProvider,
+  Map,
+  AdvancedMarker,
+  InfoWindow,
+  useMap,
+} from "@vis.gl/react-google-maps";
+import Supercluster from "supercluster";
+import type { Restaurant } from "@/lib/api";
+import { getCuisineIcon } from "@/lib/cuisine-icons";
+import Icon from "@/components/Icon";
+
+const SEOUL_CENTER = { lat: 37.5665, lng: 126.978 };
+const API_KEY = process.env.NEXT_PUBLIC_GOOGLE_MAPS_API_KEY || "";
+
+// Channel color palette
+const CHANNEL_COLORS = [
+  { bg: "#fff7ed", text: "#78350f", border: "#f59e0b", arrow: "#f59e0b" }, // amber (default)
+  { bg: "#eff6ff", text: "#1e3a5f", border: "#3b82f6", arrow: "#3b82f6" }, // blue
+  { bg: "#f0fdf4", text: "#14532d", border: "#22c55e", arrow: "#22c55e" }, // green
+  { bg: "#fdf2f8", text: "#831843", border: "#ec4899", arrow: "#ec4899" }, // pink
+  { bg: "#faf5ff", text: "#581c87", border: "#a855f7", arrow: "#a855f7" }, // purple
+  { bg: "#fff1f2", text: "#7f1d1d", border: "#ef4444", arrow: "#ef4444" }, // red
+  { bg: "#f0fdfa", text: "#134e4a", border: "#14b8a6", arrow: "#14b8a6" }, // teal
+  { bg: "#fefce8", text: "#713f12", border: "#eab308", arrow: "#eab308" }, // yellow
+];
+
+function getChannelColorMap(restaurants: Restaurant[]) {
+  const channels = new Set<string>();
+  restaurants.forEach((r) => r.channels?.forEach((ch) => channels.add(ch)));
+  const map: Record<string, typeof CHANNEL_COLORS[0]> = {};
+  let i = 0;
+  for (const ch of channels) {
+    map[ch] = CHANNEL_COLORS[i % CHANNEL_COLORS.length];
+    i++;
+  }
+  return map;
+}
+
+import type { MapBounds, FlyTo, MapViewProps } from "@/components/MapView.types";
+
+type RestaurantProps = { restaurant: Restaurant };
+type RestaurantFeature = Supercluster.PointFeature<RestaurantProps>;
+
+function useSupercluster(restaurants: Restaurant[]) {
+  // #278 — indexRef 제거 (set만 되고 read 없는 dead code)
+  const points: RestaurantFeature[] = useMemo(
+    () =>
+      restaurants.map((r) => ({
+        type: "Feature" as const,
+        geometry: { type: "Point" as const, coordinates: [r.longitude, r.latitude] },
+        properties: { restaurant: r },
+      })),
+    [restaurants]
+  );
+
+  const index = useMemo(() => {
+    const sc = new Supercluster<{ restaurant: Restaurant }>({
+      radius: 60,
+      maxZoom: 16,
+      minPoints: 2,
+    });
+    sc.load(points);
+    return sc;
+  }, [points]);
+
+  const getClusters = useCallback(
+    (bounds: MapBounds, zoom: number) => {
+      return index.getClusters(
+        [bounds.west, bounds.south, bounds.east, bounds.north],
+        Math.floor(zoom)
+      );
+    },
+    [index]
+  );
+
+  const getExpansionZoom = useCallback(
+    (clusterId: number): number => {
+      try {
+        return index.getClusterExpansionZoom(clusterId);
+      } catch {
+        return 17;
+      }
+    },
+    [index]
+  );
+
+  return { getClusters, getExpansionZoom, index };
+}
+
+function getClusterSize(count: number): number {
+  if (count < 10) return 36;
+  if (count < 50) return 42;
+  if (count < 100) return 48;
+  return 54;
+}
+
+function MapContent({ restaurants, selected, onSelectRestaurant, flyTo, activeChannel }: Omit<MapViewProps, "onMyLocation" | "onBoundsChanged">) {
+  const map = useMap();
+  const [infoTarget, setInfoTarget] = useState<Restaurant | null>(null);
+  const [zoom, setZoom] = useState(13);
+  const [bounds, setBounds] = useState<MapBounds | null>(null);
+  const channelColors = useMemo(() => getChannelColorMap(restaurants), [restaurants]);
+  const { getClusters, getExpansionZoom } = useSupercluster(restaurants);
+
+  // #278 — restaurantMap 제거 (빌드만 되고 렌더에서 사용 안 됨, dead code)
+
+  const clusters = useMemo(() => {
+    if (!bounds) return [];
+    return getClusters(bounds, zoom);
+  }, [bounds, zoom, getClusters]);
+
+  const handleMarkerClick = useCallback(
+    (r: Restaurant) => {
+      setInfoTarget(r);
+      onSelectRestaurant?.(r);
+    },
+    [onSelectRestaurant]
+  );
+
+  const handleClusterClick = useCallback(
+    (clusterId: number, lng: number, lat: number) => {
+      if (!map) return;
+      const expansionZoom = Math.min(getExpansionZoom(clusterId), 18);
+      map.panTo({ lat, lng });
+      map.setZoom(expansionZoom);
+    },
+    [map, getExpansionZoom]
+  );
+
+  // Track camera changes for clustering
+  useEffect(() => {
+    if (!map) return;
+    const listener = map.addListener("idle", () => {
+      const b = map.getBounds();
+      const z = map.getZoom();
+      if (b && z != null) {
+        const ne = b.getNorthEast();
+        const sw = b.getSouthWest();
+        setBounds({ north: ne.lat(), south: sw.lat(), east: ne.lng(), west: sw.lng() });
+        setZoom(z);
+      }
+    });
+    // Trigger initial bounds
+    const b = map.getBounds();
+    const z = map.getZoom();
+    if (b && z != null) {
+      const ne = b.getNorthEast();
+      const sw = b.getSouthWest();
+      setBounds({ north: ne.lat(), south: sw.lat(), east: ne.lng(), west: sw.lng() });
+      setZoom(z);
+    }
+    return () => google.maps.event.removeListener(listener);
+  }, [map]);
+
+  // Fly to a specific location (region filter)
+  useEffect(() => {
+    if (!map || !flyTo) return;
+    map.panTo({ lat: flyTo.lat, lng: flyTo.lng });
+    if (flyTo.zoom) map.setZoom(flyTo.zoom);
+  }, [map, flyTo]);
+
+  // Pan and zoom to selected restaurant
+  useEffect(() => {
+    if (!map || !selected) return;
+    map.panTo({ lat: selected.latitude, lng: selected.longitude });
+    map.setZoom(16);
+    setInfoTarget(selected);
+  }, [map, selected]);
+
+  return (
+    <>
+      {clusters.map((feature) => {
+        const [lng, lat] = feature.geometry.coordinates;
+        const isCluster = feature.properties && "cluster" in feature.properties && feature.properties.cluster;
+
+        if (isCluster) {
+          const { cluster_id, point_count } = feature.properties as Supercluster.ClusterProperties;
+          const size = getClusterSize(point_count);
+          return (
+            <AdvancedMarker
+              key={`cluster-${cluster_id}`}
+              position={{ lat, lng }}
+              onClick={() => handleClusterClick(cluster_id, lng, lat)}
+              zIndex={100}
+            >
+              <div
+                role="button"
+                aria-label={`${point_count}개 식당이 모인 클러스터, 클릭하면 확대됩니다`}
+                style={{
+                  width: size,
+                  height: size,
+                  borderRadius: "50%",
+                  background: "linear-gradient(135deg, #E8720C 0%, #f59e0b 100%)",
+                  border: "3px solid #fff",
+                  boxShadow: "0 2px 8px rgba(0,0,0,0.25)",
+                  display: "flex",
+                  alignItems: "center",
+                  justifyContent: "center",
+                  color: "#fff",
+                  fontSize: size > 42 ? 15 : 13,
+                  fontWeight: 700,
+                  cursor: "pointer",
+                  transition: "transform 0.2s ease",
+                }}
+              >
+                {point_count}
+              </div>
+            </AdvancedMarker>
+          );
+        }
+
+        // Individual marker
+        const r = (feature.properties as { restaurant: Restaurant }).restaurant;
+        const isSelected = selected?.id === r.id;
+        const isClosed = r.business_status === "CLOSED_PERMANENTLY";
+        const chKey = activeChannel && r.channels?.includes(activeChannel) ? activeChannel : r.channels?.[0];
+        const chColor = chKey ? channelColors[chKey] : CHANNEL_COLORS[0];
+        const c = chColor || CHANNEL_COLORS[0];
+        return (
+          <AdvancedMarker
+            key={r.id}
+            position={{ lat: r.latitude, lng: r.longitude }}
+            onClick={() => handleMarkerClick(r)}
+            zIndex={isSelected ? 1000 : 1}
+          >
+            <div
+              role="button"
+              aria-label={`${r.name}${isClosed ? ' (폐업)' : ''}, 클릭하면 상세 정보가 표시됩니다`}
+              style={{ display: "flex", flexDirection: "column", alignItems: "center", transition: "transform 0.2s ease", transform: isSelected ? "scale(1.15)" : "scale(1)", opacity: isClosed ? 0.5 : 1 }}>
+              <div
+                style={{
+                  padding: "4px 8px",
+                  backgroundColor: isSelected ? "#2563eb" : isClosed ? "#f3f4f6" : c.bg,
+                  color: isSelected ? "#fff" : isClosed ? "#9ca3af" : c.text,
+                  fontSize: 12,
+                  fontWeight: 600,
+                  borderRadius: 6,
+                  border: isSelected ? "2px solid #1d4ed8" : `1.5px solid ${c.border}`,
+                  boxShadow: isSelected
+                    ? "0 2px 8px rgba(37,99,235,0.4)"
+                    : `0 1px 4px ${c.border}40`,
+                  whiteSpace: "nowrap",
+                  maxWidth: 120,
+                  overflow: "hidden",
+                  textOverflow: "ellipsis",
+                  textDecoration: isClosed ? "line-through" : "none",
+                }}
+              >
+                <span className="material-symbols-rounded" style={{ fontSize: 14, width: 14, height: 14, overflow: "hidden", display: "inline-flex", alignItems: "center", justifyContent: "center", marginRight: 3, verticalAlign: "middle", color: "#E8720C" }}>{getCuisineIcon(r.cuisine_type)}</span>
+                {r.name}
+              </div>
+              <div
+                style={{
+                  width: 0,
+                  height: 0,
+                  borderLeft: "6px solid transparent",
+                  borderRight: "6px solid transparent",
+                  borderTop: isSelected ? "6px solid #1d4ed8" : `6px solid ${c.arrow}`,
+                  marginTop: -1,
+                }}
+              />
+            </div>
+          </AdvancedMarker>
+        );
+      })}
+
+      {infoTarget && (
+        <InfoWindow
+          position={{ lat: infoTarget.latitude, lng: infoTarget.longitude }}
+          onCloseClick={() => setInfoTarget(null)}
+        >
+          <div style={{ backgroundColor: "#ffffff", color: "#171717", colorScheme: "light" }} className="max-w-xs p-1">
+            <div className="flex items-center gap-2">
+              <h3 className="font-bold text-base" style={{ color: "#171717" }}><span className="material-symbols-rounded" style={{ fontSize: 18, width: 18, height: 18, overflow: "hidden", display: "inline-flex", alignItems: "center", justifyContent: "center", verticalAlign: "middle", color: "#E8720C", marginRight: 4 }}>{getCuisineIcon(infoTarget.cuisine_type)}</span>{infoTarget.name}</h3>
+              {infoTarget.business_status === "CLOSED_PERMANENTLY" && (
+                <span className="px-1.5 py-0.5 bg-red-100 text-red-700 rounded text-[10px] font-semibold">폐업</span>
+              )}
+              {infoTarget.business_status === "CLOSED_TEMPORARILY" && (
+                <span className="px-1.5 py-0.5 bg-yellow-100 text-yellow-700 rounded text-[10px] font-semibold">임시휴업</span>
+              )}
+            </div>
+            {infoTarget.rating && (
+              <p className="text-xs mt-0.5">
+                <span className="text-yellow-500">★</span> {infoTarget.rating}
+                {infoTarget.rating_count && (
+                  <span className="text-gray-400 ml-1">({infoTarget.rating_count.toLocaleString()})</span>
+                )}
+              </p>
+            )}
+            {infoTarget.cuisine_type && (
+              <p className="text-xs text-gray-500">{infoTarget.cuisine_type}</p>
+            )}
+            {infoTarget.address && (
+              <p className="text-[11px] text-gray-400 mt-1">{infoTarget.address}</p>
+            )}
+            {infoTarget.price_range && (
+              <p className="text-[11px] text-gray-400">{infoTarget.price_range}</p>
+            )}
+            {infoTarget.phone && (
+              <p className="text-[11px] text-gray-400">{infoTarget.phone}</p>
+            )}
+            <button
+              onClick={() => onSelectRestaurant?.(infoTarget)}
+              className="mt-2 text-sm text-blue-600 hover:underline"
+            >
+              상세 보기
+            </button>
+          </div>
+        </InfoWindow>
+      )}
+    </>
+  );
+}
+
+export default function GoogleMapView({ restaurants, selected, onSelectRestaurant, onBoundsChanged, flyTo, onMyLocation, activeChannel }: MapViewProps) {
+  const channelColors = useMemo(() => getChannelColorMap(restaurants), [restaurants]);
+  const channelNames = useMemo(() => {
+    const names = Object.keys(channelColors);
+    if (activeChannel) return names.filter((n) => n === activeChannel);
+    return names;
+  }, [channelColors, activeChannel]);
+  const boundsTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null);
+
+  const handleCameraChanged = useCallback((ev: { detail: { bounds: { north: number; south: number; east: number; west: number } } }) => {
+    if (!onBoundsChanged) return;
+    if (boundsTimerRef.current) clearTimeout(boundsTimerRef.current);
+    boundsTimerRef.current = setTimeout(() => {
+      const { north, south, east, west } = ev.detail.bounds;
+      onBoundsChanged({ north, south, east, west });
+    }, 150);
+  }, [onBoundsChanged]);
+
+  // #278 — 언마운트 시 디바운스 타이머 정리 (메모리 누수 + unmounted setState 경고 방지)
+  useEffect(() => {
+    return () => {
+      if (boundsTimerRef.current) clearTimeout(boundsTimerRef.current);
+    };
+  }, []);
+
+  return (
+    <APIProvider apiKey={API_KEY}>
+      <Map
+        defaultCenter={SEOUL_CENTER}
+        defaultZoom={13}
+        mapId="tasteby-map"
+        className="h-full w-full"
+        colorScheme="LIGHT"
+        mapTypeControl={false}
+        fullscreenControl={false}
+        onCameraChanged={handleCameraChanged}
+      >
+        <MapContent
+          restaurants={restaurants}
+          selected={selected}
+          onSelectRestaurant={onSelectRestaurant}
+          flyTo={flyTo}
+          activeChannel={activeChannel}
+        />
+      </Map>
+      {onMyLocation && (
+        <button
+          onClick={onMyLocation}
+          aria-label="내 위치로 이동"
+          // #278 — 44×44px 터치 영역 확보 (이전 36px)
+          className="absolute top-2 right-2 w-11 h-11 bg-surface rounded-lg shadow-md flex items-center justify-center text-gray-600 dark:text-gray-300 hover:text-brand-500 dark:hover:text-brand-400 transition-colors z-10 touch-manipulation"
+          title="내 위치"
+        >
+          <Icon name="my_location" size={22} />
+        </button>
+      )}
+      {channelNames.length > 0 && (
+        <div
+          role="region"
+          aria-label="채널 범례"
+          className="absolute bottom-2 left-2 bg-surface/90 backdrop-blur-sm rounded-lg shadow px-2.5 py-1.5 flex flex-wrap gap-x-3 gap-y-1 text-[11px] z-10"
+        >
+          {channelNames.map((ch) => (
+            <div key={ch} className="flex items-center gap-1">
+              <span
+                aria-hidden="true"
+                className="inline-block w-2.5 h-2.5 rounded-full border"
+                style={{ backgroundColor: channelColors[ch].border, borderColor: channelColors[ch].border }}
+              />
+              <span className="text-gray-700 dark:text-gray-300">{ch}</span>
+            </div>
+          ))}
+        </div>
+      )}
+    </APIProvider>
+  );
+}

frontend/src/components/MapView.tsx

@@ -1,416 +1,37 @@
 "use client";
 
-import { useCallback, useEffect, useMemo, useRef, useState } from "react";
+import GoogleMapView from "@/components/GoogleMapView";
-import {
+import NaverMapView from "@/components/NaverMapView";
-  APIProvider,
+import { isKoreaCoord, type MapBounds, type FlyTo, type MapViewProps } from "@/components/MapView.types";
-  Map,
-  AdvancedMarker,
-  InfoWindow,
-  useMap,
-} from "@vis.gl/react-google-maps";
-import Supercluster from "supercluster";
-import type { Restaurant } from "@/lib/api";
-import { getCuisineIcon } from "@/lib/cuisine-icons";
-import Icon from "@/components/Icon";
 
-const SEOUL_CENTER = { lat: 37.5665, lng: 126.978 };
+export type { MapBounds, FlyTo };
-const API_KEY = process.env.NEXT_PUBLIC_GOOGLE_MAPS_API_KEY || "";
 
-// Channel color palette
+const NAVER_KEY = process.env.NEXT_PUBLIC_NAVER_MAP_CLIENT_ID || "";
-const CHANNEL_COLORS = [
-  { bg: "#fff7ed", text: "#78350f", border: "#f59e0b", arrow: "#f59e0b" }, // amber (default)
-  { bg: "#eff6ff", text: "#1e3a5f", border: "#3b82f6", arrow: "#3b82f6" }, // blue
-  { bg: "#f0fdf4", text: "#14532d", border: "#22c55e", arrow: "#22c55e" }, // green
-  { bg: "#fdf2f8", text: "#831843", border: "#ec4899", arrow: "#ec4899" }, // pink
-  { bg: "#faf5ff", text: "#581c87", border: "#a855f7", arrow: "#a855f7" }, // purple
-  { bg: "#fff1f2", text: "#7f1d1d", border: "#ef4444", arrow: "#ef4444" }, // red
-  { bg: "#f0fdfa", text: "#134e4a", border: "#14b8a6", arrow: "#14b8a6" }, // teal
-  { bg: "#fefce8", text: "#713f12", border: "#eab308", arrow: "#eab308" }, // yellow
-];
 
-function getChannelColorMap(restaurants: Restaurant[]) {
+/**
-  const channels = new Set<string>();
+ * #363 — 메인 지도 dispatcher.
-  restaurants.forEach((r) => r.channels?.forEach((ch) => channels.add(ch)));
+ * - 키 미설정: GoogleMap (회귀 0)
-  const map: Record<string, typeof CHANNEL_COLORS[0]> = {};
+ * - flyTo 또는 selected 좌표가 KR bbox: NaverMap
-  let i = 0;
+ * - 그 외 (해외 + 좌표 추정): GoogleMap
-  for (const ch of channels) {
+ * - 초기 마운트 시 화면 중심을 추정할 수 없으면 식당 평균 좌표로.
-    map[ch] = CHANNEL_COLORS[i % CHANNEL_COLORS.length];
+ */
-    i++;
+export default function MapView(props: MapViewProps) {
+  if (!NAVER_KEY) return <GoogleMapView {...props} />;
+
+  const targetLat = props.flyTo?.lat ?? props.selected?.latitude ?? avgLat(props.restaurants);
+  const targetLng = props.flyTo?.lng ?? props.selected?.longitude ?? avgLng(props.restaurants);
+
+  if (targetLat != null && targetLng != null && isKoreaCoord(targetLat, targetLng)) {
+    return <NaverMapView {...props} />;
   }
-  return map;
+  return <GoogleMapView {...props} />;
 }
 
-export interface MapBounds {
+function avgLat(rs: MapViewProps["restaurants"]): number | null {
-  north: number;
+  if (!rs.length) return null;
-  south: number;
+  return rs.reduce((s, r) => s + r.latitude, 0) / rs.length;
-  east: number;
-  west: number;
 }
-
+function avgLng(rs: MapViewProps["restaurants"]): number | null {
-export interface FlyTo {
+  if (!rs.length) return null;
-  lat: number;
+  return rs.reduce((s, r) => s + r.longitude, 0) / rs.length;
-  lng: number;
-  zoom?: number;
-}
-
-interface MapViewProps {
-  restaurants: Restaurant[];
-  selected?: Restaurant | null;
-  onSelectRestaurant?: (r: Restaurant) => void;
-  onBoundsChanged?: (bounds: MapBounds) => void;
-  flyTo?: FlyTo | null;
-  onMyLocation?: () => void;
-  activeChannel?: string;
-}
-
-type RestaurantProps = { restaurant: Restaurant };
-type RestaurantFeature = Supercluster.PointFeature<RestaurantProps>;
-
-function useSupercluster(restaurants: Restaurant[]) {
-  // #278 — indexRef 제거 (set만 되고 read 없는 dead code)
-  const points: RestaurantFeature[] = useMemo(
-    () =>
-      restaurants.map((r) => ({
-        type: "Feature" as const,
-        geometry: { type: "Point" as const, coordinates: [r.longitude, r.latitude] },
-        properties: { restaurant: r },
-      })),
-    [restaurants]
-  );
-
-  const index = useMemo(() => {
-    const sc = new Supercluster<{ restaurant: Restaurant }>({
-      radius: 60,
-      maxZoom: 16,
-      minPoints: 2,
-    });
-    sc.load(points);
-    return sc;
-  }, [points]);
-
-  const getClusters = useCallback(
-    (bounds: MapBounds, zoom: number) => {
-      return index.getClusters(
-        [bounds.west, bounds.south, bounds.east, bounds.north],
-        Math.floor(zoom)
-      );
-    },
-    [index]
-  );
-
-  const getExpansionZoom = useCallback(
-    (clusterId: number): number => {
-      try {
-        return index.getClusterExpansionZoom(clusterId);
-      } catch {
-        return 17;
-      }
-    },
-    [index]
-  );
-
-  return { getClusters, getExpansionZoom, index };
-}
-
-function getClusterSize(count: number): number {
-  if (count < 10) return 36;
-  if (count < 50) return 42;
-  if (count < 100) return 48;
-  return 54;
-}
-
-function MapContent({ restaurants, selected, onSelectRestaurant, flyTo, activeChannel }: Omit<MapViewProps, "onMyLocation" | "onBoundsChanged">) {
-  const map = useMap();
-  const [infoTarget, setInfoTarget] = useState<Restaurant | null>(null);
-  const [zoom, setZoom] = useState(13);
-  const [bounds, setBounds] = useState<MapBounds | null>(null);
-  const channelColors = useMemo(() => getChannelColorMap(restaurants), [restaurants]);
-  const { getClusters, getExpansionZoom } = useSupercluster(restaurants);
-
-  // #278 — restaurantMap 제거 (빌드만 되고 렌더에서 사용 안 됨, dead code)
-
-  const clusters = useMemo(() => {
-    if (!bounds) return [];
-    return getClusters(bounds, zoom);
-  }, [bounds, zoom, getClusters]);
-
-  const handleMarkerClick = useCallback(
-    (r: Restaurant) => {
-      setInfoTarget(r);
-      onSelectRestaurant?.(r);
-    },
-    [onSelectRestaurant]
-  );
-
-  const handleClusterClick = useCallback(
-    (clusterId: number, lng: number, lat: number) => {
-      if (!map) return;
-      const expansionZoom = Math.min(getExpansionZoom(clusterId), 18);
-      map.panTo({ lat, lng });
-      map.setZoom(expansionZoom);
-    },
-    [map, getExpansionZoom]
-  );
-
-  // Track camera changes for clustering
-  useEffect(() => {
-    if (!map) return;
-    const listener = map.addListener("idle", () => {
-      const b = map.getBounds();
-      const z = map.getZoom();
-      if (b && z != null) {
-        const ne = b.getNorthEast();
-        const sw = b.getSouthWest();
-        setBounds({ north: ne.lat(), south: sw.lat(), east: ne.lng(), west: sw.lng() });
-        setZoom(z);
-      }
-    });
-    // Trigger initial bounds
-    const b = map.getBounds();
-    const z = map.getZoom();
-    if (b && z != null) {
-      const ne = b.getNorthEast();
-      const sw = b.getSouthWest();
-      setBounds({ north: ne.lat(), south: sw.lat(), east: ne.lng(), west: sw.lng() });
-      setZoom(z);
-    }
-    return () => google.maps.event.removeListener(listener);
-  }, [map]);
-
-  // Fly to a specific location (region filter)
-  useEffect(() => {
-    if (!map || !flyTo) return;
-    map.panTo({ lat: flyTo.lat, lng: flyTo.lng });
-    if (flyTo.zoom) map.setZoom(flyTo.zoom);
-  }, [map, flyTo]);
-
-  // Pan and zoom to selected restaurant
-  useEffect(() => {
-    if (!map || !selected) return;
-    map.panTo({ lat: selected.latitude, lng: selected.longitude });
-    map.setZoom(16);
-    setInfoTarget(selected);
-  }, [map, selected]);
-
-  return (
-    <>
-      {clusters.map((feature) => {
-        const [lng, lat] = feature.geometry.coordinates;
-        const isCluster = feature.properties && "cluster" in feature.properties && feature.properties.cluster;
-
-        if (isCluster) {
-          const { cluster_id, point_count } = feature.properties as Supercluster.ClusterProperties;
-          const size = getClusterSize(point_count);
-          return (
-            <AdvancedMarker
-              key={`cluster-${cluster_id}`}
-              position={{ lat, lng }}
-              onClick={() => handleClusterClick(cluster_id, lng, lat)}
-              zIndex={100}
-            >
-              <div
-                role="button"
-                aria-label={`${point_count}개 식당이 모인 클러스터, 클릭하면 확대됩니다`}
-                style={{
-                  width: size,
-                  height: size,
-                  borderRadius: "50%",
-                  background: "linear-gradient(135deg, #E8720C 0%, #f59e0b 100%)",
-                  border: "3px solid #fff",
-                  boxShadow: "0 2px 8px rgba(0,0,0,0.25)",
-                  display: "flex",
-                  alignItems: "center",
-                  justifyContent: "center",
-                  color: "#fff",
-                  fontSize: size > 42 ? 15 : 13,
-                  fontWeight: 700,
-                  cursor: "pointer",
-                  transition: "transform 0.2s ease",
-                }}
-              >
-                {point_count}
-              </div>
-            </AdvancedMarker>
-          );
-        }
-
-        // Individual marker
-        const r = (feature.properties as { restaurant: Restaurant }).restaurant;
-        const isSelected = selected?.id === r.id;
-        const isClosed = r.business_status === "CLOSED_PERMANENTLY";
-        const chKey = activeChannel && r.channels?.includes(activeChannel) ? activeChannel : r.channels?.[0];
-        const chColor = chKey ? channelColors[chKey] : CHANNEL_COLORS[0];
-        const c = chColor || CHANNEL_COLORS[0];
-        return (
-          <AdvancedMarker
-            key={r.id}
-            position={{ lat: r.latitude, lng: r.longitude }}
-            onClick={() => handleMarkerClick(r)}
-            zIndex={isSelected ? 1000 : 1}
-          >
-            <div
-              role="button"
-              aria-label={`${r.name}${isClosed ? ' (폐업)' : ''}, 클릭하면 상세 정보가 표시됩니다`}
-              style={{ display: "flex", flexDirection: "column", alignItems: "center", transition: "transform 0.2s ease", transform: isSelected ? "scale(1.15)" : "scale(1)", opacity: isClosed ? 0.5 : 1 }}>
-              <div
-                style={{
-                  padding: "4px 8px",
-                  backgroundColor: isSelected ? "#2563eb" : isClosed ? "#f3f4f6" : c.bg,
-                  color: isSelected ? "#fff" : isClosed ? "#9ca3af" : c.text,
-                  fontSize: 12,
-                  fontWeight: 600,
-                  borderRadius: 6,
-                  border: isSelected ? "2px solid #1d4ed8" : `1.5px solid ${c.border}`,
-                  boxShadow: isSelected
-                    ? "0 2px 8px rgba(37,99,235,0.4)"
-                    : `0 1px 4px ${c.border}40`,
-                  whiteSpace: "nowrap",
-                  maxWidth: 120,
-                  overflow: "hidden",
-                  textOverflow: "ellipsis",
-                  textDecoration: isClosed ? "line-through" : "none",
-                }}
-              >
-                <span className="material-symbols-rounded" style={{ fontSize: 14, width: 14, height: 14, overflow: "hidden", display: "inline-flex", alignItems: "center", justifyContent: "center", marginRight: 3, verticalAlign: "middle", color: "#E8720C" }}>{getCuisineIcon(r.cuisine_type)}</span>
-                {r.name}
-              </div>
-              <div
-                style={{
-                  width: 0,
-                  height: 0,
-                  borderLeft: "6px solid transparent",
-                  borderRight: "6px solid transparent",
-                  borderTop: isSelected ? "6px solid #1d4ed8" : `6px solid ${c.arrow}`,
-                  marginTop: -1,
-                }}
-              />
-            </div>
-          </AdvancedMarker>
-        );
-      })}
-
-      {infoTarget && (
-        <InfoWindow
-          position={{ lat: infoTarget.latitude, lng: infoTarget.longitude }}
-          onCloseClick={() => setInfoTarget(null)}
-        >
-          <div style={{ backgroundColor: "#ffffff", color: "#171717", colorScheme: "light" }} className="max-w-xs p-1">
-            <div className="flex items-center gap-2">
-              <h3 className="font-bold text-base" style={{ color: "#171717" }}><span className="material-symbols-rounded" style={{ fontSize: 18, width: 18, height: 18, overflow: "hidden", display: "inline-flex", alignItems: "center", justifyContent: "center", verticalAlign: "middle", color: "#E8720C", marginRight: 4 }}>{getCuisineIcon(infoTarget.cuisine_type)}</span>{infoTarget.name}</h3>
-              {infoTarget.business_status === "CLOSED_PERMANENTLY" && (
-                <span className="px-1.5 py-0.5 bg-red-100 text-red-700 rounded text-[10px] font-semibold">폐업</span>
-              )}
-              {infoTarget.business_status === "CLOSED_TEMPORARILY" && (
-                <span className="px-1.5 py-0.5 bg-yellow-100 text-yellow-700 rounded text-[10px] font-semibold">임시휴업</span>
-              )}
-            </div>
-            {infoTarget.rating && (
-              <p className="text-xs mt-0.5">
-                <span className="text-yellow-500">★</span> {infoTarget.rating}
-                {infoTarget.rating_count && (
-                  <span className="text-gray-400 ml-1">({infoTarget.rating_count.toLocaleString()})</span>
-                )}
-              </p>
-            )}
-            {infoTarget.cuisine_type && (
-              <p className="text-xs text-gray-500">{infoTarget.cuisine_type}</p>
-            )}
-            {infoTarget.address && (
-              <p className="text-[11px] text-gray-400 mt-1">{infoTarget.address}</p>
-            )}
-            {infoTarget.price_range && (
-              <p className="text-[11px] text-gray-400">{infoTarget.price_range}</p>
-            )}
-            {infoTarget.phone && (
-              <p className="text-[11px] text-gray-400">{infoTarget.phone}</p>
-            )}
-            <button
-              onClick={() => onSelectRestaurant?.(infoTarget)}
-              className="mt-2 text-sm text-blue-600 hover:underline"
-            >
-              상세 보기
-            </button>
-          </div>
-        </InfoWindow>
-      )}
-    </>
-  );
-}
-
-export default function MapView({ restaurants, selected, onSelectRestaurant, onBoundsChanged, flyTo, onMyLocation, activeChannel }: MapViewProps) {
-  const channelColors = useMemo(() => getChannelColorMap(restaurants), [restaurants]);
-  const channelNames = useMemo(() => {
-    const names = Object.keys(channelColors);
-    if (activeChannel) return names.filter((n) => n === activeChannel);
-    return names;
-  }, [channelColors, activeChannel]);
-  const boundsTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null);
-
-  const handleCameraChanged = useCallback((ev: { detail: { bounds: { north: number; south: number; east: number; west: number } } }) => {
-    if (!onBoundsChanged) return;
-    if (boundsTimerRef.current) clearTimeout(boundsTimerRef.current);
-    boundsTimerRef.current = setTimeout(() => {
-      const { north, south, east, west } = ev.detail.bounds;
-      onBoundsChanged({ north, south, east, west });
-    }, 150);
-  }, [onBoundsChanged]);
-
-  // #278 — 언마운트 시 디바운스 타이머 정리 (메모리 누수 + unmounted setState 경고 방지)
-  useEffect(() => {
-    return () => {
-      if (boundsTimerRef.current) clearTimeout(boundsTimerRef.current);
-    };
-  }, []);
-
-  return (
-    <APIProvider apiKey={API_KEY}>
-      <Map
-        defaultCenter={SEOUL_CENTER}
-        defaultZoom={13}
-        mapId="tasteby-map"
-        className="h-full w-full"
-        colorScheme="LIGHT"
-        mapTypeControl={false}
-        fullscreenControl={false}
-        onCameraChanged={handleCameraChanged}
-      >
-        <MapContent
-          restaurants={restaurants}
-          selected={selected}
-          onSelectRestaurant={onSelectRestaurant}
-          flyTo={flyTo}
-          activeChannel={activeChannel}
-        />
-      </Map>
-      {onMyLocation && (
-        <button
-          onClick={onMyLocation}
-          aria-label="내 위치로 이동"
-          // #278 — 44×44px 터치 영역 확보 (이전 36px)
-          className="absolute top-2 right-2 w-11 h-11 bg-surface rounded-lg shadow-md flex items-center justify-center text-gray-600 dark:text-gray-300 hover:text-brand-500 dark:hover:text-brand-400 transition-colors z-10 touch-manipulation"
-          title="내 위치"
-        >
-          <Icon name="my_location" size={22} />
-        </button>
-      )}
-      {channelNames.length > 0 && (
-        <div
-          role="region"
-          aria-label="채널 범례"
-          className="absolute bottom-2 left-2 bg-surface/90 backdrop-blur-sm rounded-lg shadow px-2.5 py-1.5 flex flex-wrap gap-x-3 gap-y-1 text-[11px] z-10"
-        >
-          {channelNames.map((ch) => (
-            <div key={ch} className="flex items-center gap-1">
-              <span
-                aria-hidden="true"
-                className="inline-block w-2.5 h-2.5 rounded-full border"
-                style={{ backgroundColor: channelColors[ch].border, borderColor: channelColors[ch].border }}
-              />
-              <span className="text-gray-700 dark:text-gray-300">{ch}</span>
-            </div>
-          ))}
-        </div>
-      )}
-    </APIProvider>
-  );
 }

frontend/src/components/MapView.types.ts

@@ -0,0 +1,29 @@
+import type { Restaurant } from "@/lib/api";
+
+export interface MapBounds {
+  north: number;
+  south: number;
+  east: number;
+  west: number;
+}
+
+export interface FlyTo {
+  lat: number;
+  lng: number;
+  zoom?: number;
+}
+
+export interface MapViewProps {
+  restaurants: Restaurant[];
+  selected?: Restaurant | null;
+  onSelectRestaurant?: (r: Restaurant) => void;
+  onBoundsChanged?: (bounds: MapBounds) => void;
+  flyTo?: FlyTo | null;
+  onMyLocation?: () => void;
+  activeChannel?: string;
+}
+
+// 좌표가 한국 영토 bbox 안인지 (WGS84).
+export function isKoreaCoord(lat: number, lng: number): boolean {
+  return lat >= 33 && lat <= 38.7 && lng >= 124 && lng <= 132;
+}

frontend/src/components/NaverMapView.tsx

@@ -0,0 +1,225 @@
+"use client";
+
+import { useCallback, useEffect, useMemo, useRef, useState } from "react";
+import Supercluster from "supercluster";
+import type { Restaurant } from "@/lib/api";
+import { getCuisineIcon } from "@/lib/cuisine-icons";
+import Icon from "@/components/Icon";
+import type { MapBounds, FlyTo, MapViewProps } from "@/components/MapView.types";
+
+// ---- naver maps v3 타입 최소 정의 (full 타입은 @types/navermaps 없음) ----
+declare global {
+  interface Window {
+    naver?: {
+      maps: NaverMaps;
+    };
+  }
+}
+type NaverMaps = {
+  LatLng: new (lat: number, lng: number) => unknown;
+  Map: new (el: HTMLElement, opts: Record<string, unknown>) => NaverMapInstance;
+  Event: { addListener: (target: unknown, type: string, fn: (...args: unknown[]) => void) => unknown };
+  Position?: unknown;
+  MapTypeControlStyle?: unknown;
+  ZoomControlStyle?: unknown;
+};
+type NaverMapInstance = {
+  setCenter: (latlng: unknown) => void;
+  setZoom: (zoom: number, useEffect?: boolean) => void;
+  getCenter: () => { lat: () => number; lng: () => number; x: number; y: number };
+  getZoom: () => number;
+  getBounds: () => { getNE: () => { lat: () => number; lng: () => number }; getSW: () => { lat: () => number; lng: () => number } };
+  getProjection: () => { fromCoordToOffset: (latlng: unknown) => { x: number; y: number } };
+  panTo: (latlng: unknown, opts?: Record<string, unknown>) => void;
+  destroy?: () => void;
+};
+
+const NAVER_CLIENT_ID = process.env.NEXT_PUBLIC_NAVER_MAP_CLIENT_ID || "";
+
+function useNaverMaps(): { ready: boolean; error: string | null } {
+  const [ready, setReady] = useState(typeof window !== "undefined" && !!window.naver?.maps);
+  const [error, setError] = useState<string | null>(null);
+
+  useEffect(() => {
+    if (!NAVER_CLIENT_ID) {
+      setError("NEXT_PUBLIC_NAVER_MAP_CLIENT_ID 미설정");
+      return;
+    }
+    if (window.naver?.maps) { setReady(true); return; }
+    const existing = document.querySelector<HTMLScriptElement>(`script[data-naver-maps]`);
+    if (existing) {
+      existing.addEventListener("load", () => setReady(true), { once: true });
+      return;
+    }
+    const s = document.createElement("script");
+    s.src = `https://oapi.map.naver.com/openapi/v3/maps.js?ncpClientId=${NAVER_CLIENT_ID}`;
+    s.async = true;
+    s.dataset.naverMaps = "1";
+    s.onload = () => setReady(true);
+    s.onerror = () => setError("naver maps v3 스크립트 로드 실패");
+    document.head.appendChild(s);
+  }, []);
+
+  return { ready, error };
+}
+
+type RestaurantProps = { restaurant: Restaurant };
+type RestaurantFeature = Supercluster.PointFeature<RestaurantProps>;
+
+function useSupercluster(restaurants: Restaurant[]) {
+  const points: RestaurantFeature[] = useMemo(
+    () => restaurants.map((r) => ({
+      type: "Feature" as const,
+      geometry: { type: "Point" as const, coordinates: [r.longitude, r.latitude] },
+      properties: { restaurant: r },
+    })),
+    [restaurants]
+  );
+  const index = useMemo(() => {
+    const sc = new Supercluster<{ restaurant: Restaurant }>({ radius: 60, maxZoom: 16, minPoints: 2 });
+    sc.load(points);
+    return sc;
+  }, [points]);
+  const getClusters = useCallback((bounds: MapBounds, zoom: number) =>
+    index.getClusters([bounds.west, bounds.south, bounds.east, bounds.north], Math.floor(zoom))
+  , [index]);
+  const getExpansionZoom = useCallback((clusterId: number) => {
+    try { return index.getClusterExpansionZoom(clusterId); } catch { return 17; }
+  }, [index]);
+  return { getClusters, getExpansionZoom };
+}
+
+function getClusterSize(count: number): number {
+  if (count < 10) return 36;
+  if (count < 50) return 42;
+  if (count < 100) return 48;
+  return 54;
+}
+
+export default function NaverMapView({
+  restaurants,
+  selected,
+  onSelectRestaurant,
+  onBoundsChanged,
+  flyTo,
+  onMyLocation,
+}: MapViewProps) {
+  const { ready, error } = useNaverMaps();
+  const divRef = useRef<HTMLDivElement | null>(null);
+  const mapRef = useRef<NaverMapInstance | null>(null);
+  const [bounds, setBounds] = useState<MapBounds | null>(null);
+  const [zoom, setZoom] = useState(13);
+  const { getClusters, getExpansionZoom } = useSupercluster(restaurants);
+
+  // 1) 지도 인스턴스 1회 생성
+  useEffect(() => {
+    if (!ready || !divRef.current || mapRef.current) return;
+    const n = window.naver!.maps;
+    const initLat = flyTo?.lat ?? selected?.latitude ?? 37.5665;
+    const initLng = flyTo?.lng ?? selected?.longitude ?? 126.978;
+    const initZoom = flyTo?.zoom ?? 13;
+    const m = new n.Map(divRef.current, {
+      center: new n.LatLng(initLat, initLng),
+      zoom: initZoom,
+      logoControl: false,
+      mapDataControl: false,
+      scaleControl: false,
+      zoomControl: false,
+    });
+    mapRef.current = m;
+    const sync = () => {
+      const b = m.getBounds();
+      const ne = b.getNE(), sw = b.getSW();
+      const nb: MapBounds = { north: ne.lat(), south: sw.lat(), east: ne.lng(), west: sw.lng() };
+      setBounds(nb);
+      setZoom(m.getZoom());
+      onBoundsChanged?.(nb);
+    };
+    sync();
+    n.Event.addListener(m, "bounds_changed", sync);
+    n.Event.addListener(m, "zoom_changed", sync);
+  }, [ready, flyTo, selected, onBoundsChanged]);
+
+  // 2) flyTo 변경 반영
+  useEffect(() => {
+    const m = mapRef.current;
+    if (!m || !flyTo || !window.naver?.maps) return;
+    m.panTo(new window.naver.maps.LatLng(flyTo.lat, flyTo.lng));
+    if (flyTo.zoom) m.setZoom(flyTo.zoom, true);
+  }, [flyTo]);
+
+  const clusters = useMemo(() => {
+    if (!bounds) return [];
+    return getClusters(bounds, zoom);
+  }, [bounds, zoom, getClusters]);
+
+  // 3) 좌표 → 화면 픽셀 변환 (네이버 projection)
+  const toScreen = useCallback((lat: number, lng: number) => {
+    const m = mapRef.current;
+    if (!m || !window.naver?.maps) return null;
+    const p = m.getProjection().fromCoordToOffset(new window.naver.maps.LatLng(lat, lng));
+    return p;
+  }, []);
+
+  if (error) return <div className="w-full h-full flex items-center justify-center text-xs text-red-500">{error} — 새로고침 후에도 같으면 Google Map으로 폴백됩니다.</div>;
+  if (!ready) return <div className="w-full h-full flex items-center justify-center text-xs text-gray-400">네이버 지도 로딩 중…</div>;
+
+  return (
+    <div className="relative w-full h-full">
+      <div ref={divRef} className="absolute inset-0" />
+
+      {/* 마커 overlay (좌표→픽셀 변환 + absolute positioned div) */}
+      {clusters.map((feature) => {
+        const [lng, lat] = feature.geometry.coordinates;
+        const pt = toScreen(lat, lng);
+        if (!pt) return null;
+        const isCluster = feature.properties && "cluster" in feature.properties && feature.properties.cluster;
+        if (isCluster) {
+          const { cluster_id, point_count } = feature.properties as Supercluster.ClusterProperties;
+          const size = getClusterSize(point_count);
+          return (
+            <button
+              key={`c-${cluster_id}`}
+              onClick={() => {
+                const z = Math.min(getExpansionZoom(cluster_id), 18);
+                const m = mapRef.current;
+                if (!m || !window.naver?.maps) return;
+                m.panTo(new window.naver.maps.LatLng(lat, lng));
+                m.setZoom(z, true);
+              }}
+              className="absolute -translate-x-1/2 -translate-y-1/2 rounded-full bg-brand-500/90 text-white font-semibold shadow-lg ring-2 ring-white"
+              style={{ left: pt.x, top: pt.y, width: size, height: size, fontSize: size > 44 ? 14 : 12 }}
+            >
+              {point_count}
+            </button>
+          );
+        }
+        const r = (feature.properties as RestaurantProps).restaurant;
+        const cuisineIcon = getCuisineIcon(r.cuisine_type);
+        const isSel = selected?.id === r.id;
+        return (
+          <button
+            key={r.id}
+            onClick={() => onSelectRestaurant?.(r)}
+            className={`absolute -translate-x-1/2 -translate-y-full rounded-full shadow-md ring-2 ring-white transition-transform ${isSel ? "scale-125 z-10" : ""}`}
+            style={{ left: pt.x, top: pt.y, width: 32, height: 32, background: "#f59e0b", color: "#78350f" }}
+            title={r.name}
+          >
+            <Icon name={cuisineIcon} size={18} />
+          </button>
+        );
+      })}
+
+      {/* 내 위치 버튼 */}
+      {onMyLocation && (
+        <button
+          onClick={onMyLocation}
+          aria-label="내 위치"
+          className="absolute right-3 bottom-3 size-11 rounded-full bg-white shadow-lg flex items-center justify-center"
+        >
+          <Icon name="my-location" size={22} />
+        </button>
+      )}
+    </div>
+  );
+}

frontend/src/components/RestaurantDetail.tsx

@@ -24,6 +24,15 @@ function buildSearchQuery(r: Restaurant): string {
   return r.name;
 }
 
+// 좌표 기반 한국 판정 (WGS84). KR bbox 대략 33~38.7°N, 124~132°E.
+// 좌표 없으면 region 첫 토큰으로 fallback (구 데이터 호환).
+function isKoreaRestaurant(r: Restaurant): boolean {
+  if (r.latitude != null && r.longitude != null) {
+    return r.latitude >= 33 && r.latitude <= 38.7 && r.longitude >= 124 && r.longitude <= 132;
+  }
+  return !r.region || r.region.split("|")[0] === "한국";
+}
+
 export default function RestaurantDetail({
   restaurant,
   onClose,
@@ -138,6 +147,26 @@ export default function RestaurantDetail({
         )}
         {restaurant.google_place_id && (
           <p className="flex gap-3">
+            {isKoreaRestaurant(restaurant) ? (
+              <>
+                <a
+                  href={`https://map.naver.com/p/search/${encodeURIComponent(buildSearchQuery(restaurant))}`}
+                  target="_blank"
+                  rel="noopener noreferrer"
+                  className="text-green-600 dark:text-green-400 hover:underline text-xs"
+                >
+                  네이버 지도에서 보기
+                </a>
+                <a
+                  href={`https://www.google.com/maps/search/?api=1&query=${encodeURIComponent(buildSearchQuery(restaurant))}`}
+                  target="_blank"
+                  rel="noopener noreferrer"
+                  className="text-gray-500 dark:text-gray-400 hover:underline text-xs"
+                >
+                  Google Maps
+                </a>
+              </>
+            ) : (
               <a
                 href={`https://www.google.com/maps/search/?api=1&query=${encodeURIComponent(buildSearchQuery(restaurant))}`}
                 target="_blank"
@@ -146,15 +175,6 @@ export default function RestaurantDetail({
               >
                 Google Maps에서 보기
               </a>
-            {(!restaurant.region || restaurant.region.split("|")[0] === "한국") && (
-              <a
-                href={`https://map.naver.com/v5/search/${encodeURIComponent(restaurant.name)}`}
-                target="_blank"
-                rel="noopener noreferrer"
-                className="text-green-600 dark:text-green-400 hover:underline text-xs"
-              >
-                네이버 지도에서 보기
-              </a>
             )}
           </p>
         )}