[FIX] 필터링 조건 수정 (#92)

src/main/java/com/sumte/guesthouse/controller/GuesthouseController.java

@@ -59,11 +59,12 @@ public class GuesthouseController {
 				name = "Guesthouse Register Example",
 				value = """
 					{
-					  "name": "도심 속 게스트하우스",
-					  "description": "시장 도보 10분, 해수욕장 15분",
-					  "basePrice": 35000,
-					  "optionService": ["조식포함"],
-					  "targetAudience": ["남성전용"]
+					  "name": "필터링 될 게스트하우스",
+					  "addressRegion": "제주특별자치도",
+					  "addressDetail": "어쩌구길 12",
+					  "information": "시장 도보 10분, 해수욕장 도보 15분 거리",
+					  "optionServices": ["조식포함", "여성전용"],
+					  "targetAudience": ["애견동반"]
 					}
 					"""
 			)

src/main/java/com/sumte/guesthouse/repository/GuesthouseRepositoryImpl.java

@@ -157,21 +157,32 @@ public Page<GuesthousePreviewDTO> searchFiltered(GuesthouseSearchRequestDTO dto,
 		}
 
 		if (dto.getOptionService() != null && !dto.getOptionService().isEmpty()) {
-			condition.and(guesthouse.id.in(
-				JPAExpressions.select(guesthouseOptionServices.guesthouse.id)
-					.from(guesthouseOptionServices)
-					.join(guesthouseOptionServices.optionServices, optionService)
-					.where(optionService.name.in(dto.getOptionService()))
-			));
+			for (String svc : dto.getOptionService()) {
+				condition.and(
+					guesthouse.id.in(
+						JPAExpressions
+							.select(guesthouseOptionServices.guesthouse.id)
+							.from(guesthouseOptionServices)
+							.join(guesthouseOptionServices.optionServices, optionService)
+							.where(optionService.name.eq(svc))
+					)
+				);
+			}
 		}
 
+		// targetAudience: 각 값이 모두 포함된 게스트하우스만 (AND)
 		if (dto.getTargetAudience() != null && !dto.getTargetAudience().isEmpty()) {
-			condition.and(guesthouse.id.in(
-				JPAExpressions.select(guesthouseTargetAudience.guesthouse.id)
-					.from(guesthouseTargetAudience)
-					.join(guesthouseTargetAudience.targetAudience, targetAudience)
-					.where(targetAudience.name.in(dto.getTargetAudience()))
-			));
+			for (String aud : dto.getTargetAudience()) {
+				condition.and(
+					guesthouse.id.in(
+						JPAExpressions
+							.select(guesthouseTargetAudience.guesthouse.id)
+							.from(guesthouseTargetAudience)
+							.join(guesthouseTargetAudience.targetAudience, targetAudience)
+							.where(targetAudience.name.eq(aud))
+					)
+				);
+			}
 		}
 
 		NumberExpression<Double> avgScoreExpr = Expressions.numberTemplate(