fix: converge broker failures without retry

trex_core/adapters/broker/kis.py

@@ -15,7 +15,7 @@ import base64
 import hashlib
 import json
 from dataclasses import replace
-from datetime import datetime, time, timedelta, timezone
+from datetime import datetime, timedelta, timezone
 from decimal import Decimal, InvalidOperation
 from time import monotonic
 from typing import Callable, Optional
@@ -40,7 +40,7 @@ _MOCK_HINTS = ("openapivts", "virtual", "mock")
 _FILL_POLL_MIN_INTERVAL_SECONDS = 5.0
 _FILL_POLL_TRANSPORT_BACKOFF_SECONDS = 30.0
 _SUBMISSION_LOOKUP_GRACE_SECONDS = 90.0
-_SUPPORTED_ORDER_VENUES = frozenset({"AUTO", "KRX", "NXT", "SOR"})
+_SUPPORTED_ORDER_VENUES = frozenset({"KRX", "NXT", "SOR"})
 
 
 def _balance_http_error_code(status: Optional[int]) -> str:
@@ -54,26 +54,15 @@ def _balance_http_error_code(status: Optional[int]) -> str:
 
 
 def resolve_order_venue(venue: str, at: datetime) -> str:
-    """Resolve AUTO to the venue that accepts domestic-stock orders at `at`.
+    """Validate and preserve an explicit KRX/NXT/SOR order venue.
 
-    The gaps are intentional fail-closed intervals. They prevent an AUTO order
-    from silently falling back to KRX while the opening venue is indeterminate.
-    Explicit KRX/NXT/SOR values are preserved.
+    ``at`` remains in the signature for compatibility with existing callers;
+    venue selection is deliberately independent of wall-clock time.
     """
     normalized = str(venue).strip().upper()
     if normalized not in _SUPPORTED_ORDER_VENUES:
         raise ValueError("unsupported_order_venue")
-    if normalized != "AUTO":
-        return normalized
-
-    current = at.astimezone(_KST).time().replace(tzinfo=None)
-    if time(8, 0) <= current < time(8, 50):
-        return "NXT"
-    if time(9, 0, 30) <= current < time(15, 30):
-        return "KRX"
-    if time(15, 30) <= current <= time(20, 0):
-        return "NXT"
-    raise ValueError("auto_venue_session_closed")
+    return normalized
 
 
 def _safe_int(v: object) -> Optional[int]: