feat: 카테고리 삭제 API 구현

src/main/java/com/potatocake/everymoment/controller/CategoryController.java

@@ -10,6 +10,7 @@
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PatchMapping;
 import org.springframework.web.bind.annotation.PathVariable;
@@ -53,4 +54,13 @@ public ResponseEntity<SuccessResponse> updateCategory(@PathVariable Long categor
                 .body(SuccessResponse.ok());
     }
 
+    @DeleteMapping("/{categoryId}")
+    public ResponseEntity<SuccessResponse> deleteCategory(@PathVariable Long categoryId,
+                                                          @AuthenticationPrincipal MemberDetails memberDetails) {
+        categoryService.deleteCategory(categoryId, memberDetails.getId());
+
+        return ResponseEntity.ok()
+                .body(SuccessResponse.ok());
+    }
+
 }

src/main/java/com/potatocake/everymoment/service/CategoryService.java

@@ -43,4 +43,13 @@ public void updateCategory(Long categoryId, Long memberId, CategoryCreateRequest
         category.update(request.getCategoryName());
     }
 
+    public void deleteCategory(Long categoryId, Long memberId) {
+        Category category = categoryRepository.findById(categoryId)
+                .orElseThrow(() -> new GlobalException(ErrorCode.CATEGORY_NOT_FOUND));
+
+        category.checkOwner(memberId);
+
+        categoryRepository.delete(category);
+    }
+
 }