Maintenance: RecommendationController - Remove unused imports and fields (#108)

Co-authored-by: claude[bot] <41898282+claude[bot]@users.noreply.github.com>
Co-authored-by: Claude <[email protected]>

Author: 3 people

src/main/java/spring/memewikibe/api/controller/recommendation/RecommendationController.java

@@ -5,28 +5,17 @@
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
-import spring.memewikibe.api.controller.meme.response.MemeSimpleResponse;
 import spring.memewikibe.api.controller.recommendation.response.MemeRecommendationResponse;
 import spring.memewikibe.application.RecommendationService;
-import spring.memewikibe.domain.meme.Meme;
-import spring.memewikibe.infrastructure.MemeRepository;
-import spring.memewikibe.infrastructure.ai.MemeVectorIndexService;
-import spring.memewikibe.infrastructure.ai.NaverRagService;
 import spring.memewikibe.support.response.ApiResponse;
 
 import java.util.List;
-import java.util.Map;
-import java.util.function.Function;
-import java.util.stream.Collectors;
 
 @RestController
 @RequestMapping("/api/recommendations")
 @RequiredArgsConstructor
 public class RecommendationController {
 
-    private final MemeVectorIndexService vectorIndexService;
-    private final NaverRagService naverRagService;
-    private final MemeRepository memeRepository;
     private final RecommendationService recommendationService;