수정

backend/src/main/java/com/goldenchart/service/LiveConditionStatusService.java

@@ -203,6 +203,42 @@ public class LiveConditionStatusService {
         return bestIdx;
     }
 
+    /** scan 0건 시 DSL 임계값 요약 로그 */
+    private static String summarizeBuyCondition(JsonNode buyDsl) {
+        if (buyDsl == null || buyDsl.isNull()) return "null";
+        JsonNode cond = findFirstCondition(buyDsl);
+        if (cond == null) return "no-condition";
+        String rf = cond.path("rightField").asText("");
+        boolean override = cond.path("thresholdOverride").asBoolean(false);
+        double target = cond.path("targetValue").asDouble(Double.NaN);
+        Double resolved = IndicatorHlineResolver.resolveThresholdField(cond, rf,
+                cond.path("indicatorType").asText(""), Map.of());
+        return String.format("right=%s override=%s target=%s resolved=%s type=%s left=%s",
+                rf, override, Double.isNaN(target) ? "-" : target,
+                resolved != null ? resolved : "-",
+                cond.path("conditionType").asText(""),
+                cond.path("leftField").asText(""));
+    }
+
+    private static JsonNode findFirstCondition(JsonNode node) {
+        if (node == null || node.isNull()) return null;
+        if (node.has("condition")) {
+            JsonNode c = node.get("condition");
+            if (c != null && c.has("indicatorType")) return c;
+        }
+        if (node.has("indicatorType")) return node;
+        JsonNode children = node.get("children");
+        if (children != null && children.isArray()) {
+            for (JsonNode ch : children) {
+                JsonNode found = findFirstCondition(ch);
+                if (found != null) return found;
+            }
+        }
+        JsonNode child = node.get("child");
+        if (child != null) return findFirstCondition(child);
+        return null;
+    }
+
     /** Ta4j Bar → 차트용 봉 시작 시각(초) — BacktestingService.barStartEpoch 와 동일 */
     private static long barOpenEpochSec(BarSeries series, int index) {
         var bar = series.getBar(index);
@@ -781,9 +817,9 @@ public class LiveConditionStatusService {
                 }
             }
             if (signals.isEmpty()) {
-                log.info("[LiveCondition:scan] 0 signals market={} strategy={} tf={} bars={} eval={}..{}",
+                log.info("[LiveCondition:scan] 0 signals market={} strategy={} tf={} bars={} eval={}..{} cond={}",
                         market, strategyId, primaryTf, primarySeries.getBarCount(), startIdx,
-                        primarySeries.getEndIndex());
+                        primarySeries.getEndIndex(), summarizeBuyCondition(buyDsl));
             } else {
                 log.debug("[LiveCondition:scan] market={} strategy={} tf={} buy={} sell={}",
                         market, strategyId, primaryTf, buyHits, sellHits);