fix: synology py38 compatibility and KIS validation deps

src/quant_engine/snapshot_admin_store_v1.py

@@ -3,11 +3,10 @@ from __future__ import annotations
 import json
 import re
 import sqlite3
-from datetime import datetime
+from datetime import datetime, timedelta, timezone
 from functools import lru_cache
 from pathlib import Path
 from typing import Any
-from zoneinfo import ZoneInfo
 
 import yaml
 
@@ -15,7 +14,7 @@ import yaml
 ROOT = Path(__file__).resolve().parents[2]
 DEFAULT_DB = ROOT / "outputs" / "snapshot_admin" / "snapshot_admin.db"
 DEFAULT_SEED_JSON = ROOT / "GatherTradingData.json"
-KST = ZoneInfo("Asia/Seoul")
+KST = timezone(timedelta(hours=9))
 
 SETTINGS_TABLE = "settings"
 SNAPSHOT_TABLE = "account_snapshot"