전략조건 상세설명 기능 추가

backend/src/main/java/com/goldenchart/controller/StrategyController.java

@@ -1,6 +1,7 @@
 package com.goldenchart.controller;
 
 import com.goldenchart.dto.StrategyDto;
+import com.goldenchart.service.StrategyConditionTimeframeService;
 import com.goldenchart.service.StrategyService;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.ResponseEntity;
@@ -23,6 +24,7 @@ import java.util.List;
 public class StrategyController {
 
     private final StrategyService service;
+    private final StrategyConditionTimeframeService conditionTimeframes;
 
     /** 전략 목록 조회 */
     @GetMapping
@@ -49,6 +51,12 @@ public class StrategyController {
         return ResponseEntity.ok(service.save(dto, parseUserId(userIdHeader), deviceId));
     }
 
+    /** 전략 DSL에 포함된 평가 시간봉 목록 */
+    @GetMapping("/{id}/timeframes")
+    public ResponseEntity<List<String>> timeframes(@PathVariable Long id) {
+        return ResponseEntity.ok(conditionTimeframes.collectForStrategyList(id));
+    }
+
     /** 전략 삭제 */
     @DeleteMapping("/{id}")
     public ResponseEntity<Void> delete(@PathVariable Long id) {