전략 시간봉 오류 수정

frontend/src/components/StrategyEditorPage.tsx

@@ -24,6 +24,7 @@ import { findLogicNode, getIndicatorPeriodLabel } from '../utils/strategyFlowLay
 import {
   decodeConditionForEditor,
   encodeConditionForSave,
+  mergeStartMetaForLoad,
   addExtraStartSection,
   hasMultipleStartSections,
   normalizeStartCombineOp,
@@ -500,7 +501,7 @@ export default function StrategyEditorPage({ theme }: Props) {
     setBuyLayout({
       positions: stored?.buy.positions ?? {},
       edgeHandles: stored?.buy.edgeHandles ?? {},
-      startMeta: stored?.buy.startMeta ?? buyDecoded.startMeta,
+      startMeta: mergeStartMetaForLoad(buyDecoded.startMeta, stored?.buy.startMeta),
       extraStartIds: stored?.buy.extraStartIds?.length ? stored.buy.extraStartIds : buyDecoded.extraStartIds,
       extraRoots: stored?.buy.extraRoots && Object.keys(stored.buy.extraRoots).length
         ? stored.buy.extraRoots
@@ -510,7 +511,7 @@ export default function StrategyEditorPage({ theme }: Props) {
     setSellLayout({
       positions: stored?.sell.positions ?? {},
       edgeHandles: stored?.sell.edgeHandles ?? {},
-      startMeta: stored?.sell.startMeta ?? sellDecoded.startMeta,
+      startMeta: mergeStartMetaForLoad(sellDecoded.startMeta, stored?.sell.startMeta),
       extraStartIds: stored?.sell.extraStartIds?.length ? stored.sell.extraStartIds : sellDecoded.extraStartIds,
       extraRoots: stored?.sell.extraRoots && Object.keys(stored.sell.extraRoots).length
         ? stored.sell.extraRoots
@@ -538,6 +539,7 @@ export default function StrategyEditorPage({ theme }: Props) {
       return;
     }
     setSaveNameError(false);
+    if (editorMode === 'graph') layoutFlushRef.current?.();
     const encodedBuy = encodeConditionForSave(buyEditorState);
     const encodedSell = encodeConditionForSave(sellEditorState);
     if (!encodedBuy && !encodedSell) { showSnack('조건을 최소 1개 추가하세요', false); return; }

frontend/src/utils/strategyConditionSerde.ts

@@ -161,7 +161,6 @@ export function encodeConditionForSave(state: EditorConditionState): LogicNode |
   if (branches.length === 0) return null;
   if (branches.length === 1) {
     const { candleType, root } = branches[0];
-    if (normalizeStartCandleType(candleType) === DEFAULT_START_CANDLE) return root;
     return wrapTimeframe(candleType, root);
   }
 
@@ -257,3 +256,20 @@ export function collectEditorBranches(state: EditorConditionState): ConditionBra
 export function collectDslBranches(dsl: LogicNode | null): ConditionBranch[] {
   return collectEditorBranches(decodeConditionForEditor(dsl));
 }
+
+/**
+ * 전략 로드 시 startMeta 병합 — DB DSL에서 복원한 시간봉이 localStorage보다 우선.
+ */
+export function mergeStartMetaForLoad(
+  decoded: Record<string, StartNodeMeta>,
+  stored?: Record<string, StartNodeMeta> | null,
+): Record<string, StartNodeMeta> {
+  const merged: Record<string, StartNodeMeta> = {
+    ...defaultStartMeta(),
+    ...stored,
+  };
+  for (const [startId, meta] of Object.entries(decoded)) {
+    merged[startId] = { candleType: normalizeStartCandleType(meta.candleType) };
+  }
+  return merged;
+}