비공개 메모 기능 추가 + 아이콘 개선

- 식당별 1:1 비공개 메모 CRUD (user_memos 테이블)
- 내 기록에 리뷰/메모 탭 분리
- 백오피스 유저 관리에 메모 수/상세 표시
- 리뷰/메모 작성 시 현재 날짜 기본값
- 지도우선/목록우선 버튼 Material Symbols 아이콘 적용

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

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

@@ -1,7 +1,9 @@
 package com.tasteby.controller;
 
+import com.tasteby.domain.Memo;
 import com.tasteby.domain.Restaurant;
 import com.tasteby.domain.Review;
+import com.tasteby.service.MemoService;
 import com.tasteby.service.ReviewService;
 import com.tasteby.service.UserService;
 import org.springframework.web.bind.annotation.*;
@@ -15,10 +17,12 @@ public class AdminUserController {
 
     private final UserService userService;
     private final ReviewService reviewService;
+    private final MemoService memoService;
 
-    public AdminUserController(UserService userService, ReviewService reviewService) {
+    public AdminUserController(UserService userService, ReviewService reviewService, MemoService memoService) {
         this.userService = userService;
         this.reviewService = reviewService;
+        this.memoService = memoService;
     }
 
     @GetMapping
@@ -39,4 +43,9 @@ public class AdminUserController {
     public List<Review> userReviews(@PathVariable String userId) {
         return reviewService.findByUser(userId, 100, 0);
     }
+
+    @GetMapping("/{userId}/memos")
+    public List<Memo> userMemos(@PathVariable String userId) {
+        return memoService.findByUser(userId);
+    }
 }

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

@@ -0,0 +1,59 @@
+package com.tasteby.controller;
+
+import com.tasteby.domain.Memo;
+import com.tasteby.security.AuthUtil;
+import com.tasteby.service.MemoService;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.time.LocalDate;
+import java.util.List;
+import java.util.Map;
+
+@RestController
+@RequestMapping("/api")
+public class MemoController {
+
+    private final MemoService memoService;
+
+    public MemoController(MemoService memoService) {
+        this.memoService = memoService;
+    }
+
+    @GetMapping("/restaurants/{restaurantId}/memo")
+    public Memo getMemo(@PathVariable String restaurantId) {
+        String userId = AuthUtil.getUserId();
+        Memo memo = memoService.findByUserAndRestaurant(userId, restaurantId);
+        if (memo == null) {
+            throw new ResponseStatusException(HttpStatus.NOT_FOUND, "No memo");
+        }
+        return memo;
+    }
+
+    @PostMapping("/restaurants/{restaurantId}/memo")
+    public Memo upsertMemo(@PathVariable String restaurantId,
+                           @RequestBody Map<String, Object> body) {
+        String userId = AuthUtil.getUserId();
+        Double rating = body.get("rating") != null
+                ? ((Number) body.get("rating")).doubleValue() : null;
+        String text = (String) body.get("memo_text");
+        LocalDate visitedAt = body.get("visited_at") != null
+                ? LocalDate.parse((String) body.get("visited_at")) : null;
+        return memoService.upsert(userId, restaurantId, rating, text, visitedAt);
+    }
+
+    @GetMapping("/users/me/memos")
+    public List<Memo> myMemos() {
+        return memoService.findByUser(AuthUtil.getUserId());
+    }
+
+    @DeleteMapping("/restaurants/{restaurantId}/memo")
+    @ResponseStatus(HttpStatus.NO_CONTENT)
+    public void deleteMemo(@PathVariable String restaurantId) {
+        String userId = AuthUtil.getUserId();
+        if (!memoService.delete(userId, restaurantId)) {
+            throw new ResponseStatusException(HttpStatus.NOT_FOUND, "No memo");
+        }
+    }
+}

backend-java/src/main/java/com/tasteby/domain/Memo.java

@@ -0,0 +1,22 @@
+package com.tasteby.domain;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class Memo {
+    private String id;
+    private String userId;
+    private String restaurantId;
+    private Double rating;
+    private String memoText;
+    private String visitedAt;
+    private String createdAt;
+    private String updatedAt;
+    private String restaurantName;
+}

backend-java/src/main/java/com/tasteby/domain/UserInfo.java

@@ -22,4 +22,5 @@ public class UserInfo {
     private String createdAt;
     private int favoriteCount;
     private int reviewCount;
+    private int memoCount;
 }

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

@@ -0,0 +1,32 @@
+package com.tasteby.mapper;
+
+import com.tasteby.domain.Memo;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+
+import java.util.List;
+
+@Mapper
+public interface MemoMapper {
+
+    Memo findByUserAndRestaurant(@Param("userId") String userId,
+                                 @Param("restaurantId") String restaurantId);
+
+    void insertMemo(@Param("id") String id,
+                    @Param("userId") String userId,
+                    @Param("restaurantId") String restaurantId,
+                    @Param("rating") Double rating,
+                    @Param("memoText") String memoText,
+                    @Param("visitedAt") String visitedAt);
+
+    int updateMemo(@Param("userId") String userId,
+                   @Param("restaurantId") String restaurantId,
+                   @Param("rating") Double rating,
+                   @Param("memoText") String memoText,
+                   @Param("visitedAt") String visitedAt);
+
+    int deleteMemo(@Param("userId") String userId,
+                   @Param("restaurantId") String restaurantId);
+
+    List<Memo> findByUser(@Param("userId") String userId);
+}

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

@@ -0,0 +1,44 @@
+package com.tasteby.service;
+
+import com.tasteby.domain.Memo;
+import com.tasteby.mapper.MemoMapper;
+import com.tasteby.util.IdGenerator;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.time.LocalDate;
+import java.util.List;
+
+@Service
+public class MemoService {
+
+    private final MemoMapper mapper;
+
+    public MemoService(MemoMapper mapper) {
+        this.mapper = mapper;
+    }
+
+    public Memo findByUserAndRestaurant(String userId, String restaurantId) {
+        return mapper.findByUserAndRestaurant(userId, restaurantId);
+    }
+
+    @Transactional
+    public Memo upsert(String userId, String restaurantId, Double rating, String memoText, LocalDate visitedAt) {
+        String visitedStr = visitedAt != null ? visitedAt.toString() : null;
+        Memo existing = mapper.findByUserAndRestaurant(userId, restaurantId);
+        if (existing != null) {
+            mapper.updateMemo(userId, restaurantId, rating, memoText, visitedStr);
+        } else {
+            mapper.insertMemo(IdGenerator.newId(), userId, restaurantId, rating, memoText, visitedStr);
+        }
+        return mapper.findByUserAndRestaurant(userId, restaurantId);
+    }
+
+    public boolean delete(String userId, String restaurantId) {
+        return mapper.deleteMemo(userId, restaurantId) > 0;
+    }
+
+    public List<Memo> findByUser(String userId) {
+        return mapper.findByUser(userId);
+    }
+}