차트 설정 수정

frontend/src/utils/backendApi.ts

@@ -90,6 +90,18 @@ async function requestOrThrow<T>(path: string, init?: RequestInit): Promise<T> {
   return JSON.parse(text) as T;
 }
 
+/** 서버에 없는 전략 ID — 삭제·만료 후 반복 404 방지 (태블릿·Safari 네트워크 로그 완화) */
+const strategyMissingIds = new Set<number>();
+
+export function isStrategyMissingOnServer(strategyId: number): boolean {
+  return strategyId > 0 && strategyMissingIds.has(strategyId);
+}
+
+function markStrategyMissingFromPath(pathOnly: string): void {
+  const m = pathOnly.match(/^\/strategies\/(\d+)(?:\/|$)/);
+  if (m) strategyMissingIds.add(Number(m[1]));
+}
+
 async function request<T>(path: string, init?: RequestInit): Promise<T | null> {
   try {
     const res = await fetch(`${API_BASE}${path}`, {
@@ -100,8 +112,16 @@ async function request<T>(path: string, init?: RequestInit): Promise<T | null> {
     if (!res.ok) {
       const method = init?.method ?? 'GET';
       const guest403 = res.status === 403 && !hasRegisteredUser();
-      const missing404 = res.status === 404 && method === 'GET';
-      if (!guest403 && !missing404) {
+      const pathOnly = path.split('?')[0];
+      if (res.status === 404 && /^\/strategies\/\d+/.test(pathOnly)) {
+        markStrategyMissingFromPath(pathOnly);
+      }
+      const quiet404 = res.status === 404 && (
+        method === 'GET'
+        || pathOnly.includes('/repair-timeframes')
+        || /^\/strategies\/\d+/.test(pathOnly)
+      );
+      if (!guest403 && !quiet404) {
         console.error(`[backendApi] ${method} ${path} → ${res.status}`);
       }
       return null;
@@ -1061,7 +1081,7 @@ export async function loadStrategies(): Promise<StrategyDto[]> {
 
 /** 단일 전략 로드 */
 export async function loadStrategy(id: number): Promise<StrategyDto | null> {
-  if (!hasRegisteredUser()) return null;
+  if (!hasRegisteredUser() || id <= 0 || strategyMissingIds.has(id)) return null;
   return request<StrategyDto>(`/strategies/${id}`);
 }
 
@@ -1401,10 +1421,30 @@ export async function loadStrategyTimeframes(strategyId: number): Promise<string
   return list?.length ? list : ['1m'];
 }
 
-/** DB DSL TIMEFRAME 래핑 보정 (3분봉 전략이 1m으로 평가되는 레거시 수정) */
-export async function repairStrategyTimeframes(strategyId: number): Promise<void> {
-  if (!hasRegisteredUser()) return;
-  await request(`/strategies/${strategyId}/repair-timeframes`, { method: 'POST' });
+const repairSkipIds = new Set<number>();
+const repairInflight = new Set<number>();
+
+/** DB DSL TIMEFRAME 래핑 보정 — 전략 없으면 호출 안 함(404 방지) */
+export async function repairStrategyTimeframes(strategyId: number): Promise<boolean> {
+  if (!hasRegisteredUser() || strategyId <= 0 || strategyMissingIds.has(strategyId)) return false;
+  if (repairSkipIds.has(strategyId) || repairInflight.has(strategyId)) return false;
+
+  repairInflight.add(strategyId);
+  try {
+    const exists = await loadStrategy(strategyId);
+    if (!exists) {
+      repairSkipIds.add(strategyId);
+      return false;
+    }
+    const ok = await request<StrategyDto>(
+      `/strategies/${strategyId}/repair-timeframes`,
+      { method: 'POST' },
+    );
+    if (!ok) repairSkipIds.add(strategyId);
+    return ok != null;
+  } finally {
+    repairInflight.delete(strategyId);
+  }
 }
 
 /** 차트 실시간 파이프라인 pin (STOMP warm-up) */