T-13 补修：verify_convert_lots/apply 字面造数日期改真库日历链式回推（用户指出硬编码 · 全仓排查留痕）

scripts/dev/verify_convert_lots.py

@@ -25,7 +25,7 @@ TEXT 绑定参数转数值 → 不加就扣 0；见开发计划 §B.8 第 11 条
 from __future__ import annotations
 
 import sys
-from datetime import date, datetime
+from datetime import date, datetime, time as dtime, timedelta
 from decimal import ROUND_HALF_UP, Decimal
 from pathlib import Path
 
@@ -39,14 +39,41 @@ from app.gateway.gateway_repository import GatewayRepository  # noqa: E402
 from app.gateway.trade_gateway import _maintain_lots  # noqa: E402
 from app.repository.core_ro import CoreReadOnlyRepository  # noqa: E402
 from app.service.convert.lot_bootstrap import bootstrap_lots  # noqa: E402
+from app.service.convert.trading_calendar import previous_biz_day  # noqa: E402
 from app.utils.db import dispose_engines, get_engine  # noqa: E402
 
 CUSTOMER = "CUST-LOTT"
 PROD_SUB = "PROD-LOTTA"  # A 组：申购建批次
 PROD_BOOT = "PROD-LOTTB"  # D 组：无批次有持仓 → D8 兜底补建
 PROD_REDEEM = "PROD-LOTTC"  # B/C 组：赎回 FIFO 扣减
-NAV_DATE = date(2026, 9, 4)
-TRADE_AT = datetime(2026, 9, 4, 14, 0, 0)
+# 造数日期在 main() 里按真库交易日历链式回推动态确定（T-12 模式：不猜自然日，
+# 对任意假期安排与日期漂移鲁棒）。相对关系与原固定基准（2026-09-04）一致：
+# TRADE_DATE = 回推 3 个交易日；C1/C2 批次 = 再回推 3/2 个交易日（保证 T+2 可扣）；
+# D 组持仓 as_of = 回推 34 个自然日（hold_days 为自然日语义，档位断言不变）。
+NAV_DATE: "date | None" = None
+TRADE_AT: "datetime | None" = None
+_C1_AT: "datetime | None" = None
+_C2_AT: "datetime | None" = None
+_BOOT_AS_OF: "date | None" = None
+
+
+def _init_dates(admin) -> None:
+    """按真库交易日历把造数日期锚定到确定过去的历史开市日（必须在 seed 前调用）。"""
+    global NAV_DATE, TRADE_AT, _C1_AT, _C2_AT, _BOOT_AS_OF
+    is_open = CoreReadOnlyRepository(engine=admin).is_open
+    d = date.today()
+    for _ in range(3):
+        d = previous_biz_day(d, is_open)
+    NAV_DATE = d
+    TRADE_AT = datetime.combine(d, dtime(10, 0))
+    c1 = c2 = d
+    for _ in range(3):
+        c1 = previous_biz_day(c1, is_open)
+    for _ in range(2):
+        c2 = previous_biz_day(c2, is_open)
+    _C1_AT = datetime.combine(c1, dtime(10, 0))
+    _C2_AT = datetime.combine(c2, dtime(10, 0))
+    _BOOT_AS_OF = d - timedelta(days=34)
 
 _passed = 0
 _failed = 0
@@ -108,8 +135,8 @@ def seed(engine) -> None:
             )
         # C 组：两个已存在批次（FIFO 扣减用）
         for lot_id, qty, nav, confirmed in [
-            ("LOT-LOTT-C1", "100", "1.0000", datetime(2026, 9, 1, 10, 0, 0)),
-            ("LOT-LOTT-C2", "50", "1.1000", datetime(2026, 9, 2, 10, 0, 0)),
+            ("LOT-LOTT-C1", "100", "1.0000", _C1_AT),
+            ("LOT-LOTT-C2", "50", "1.1000", _C2_AT),
         ]:
             conn.execute(
                 text(
@@ -127,7 +154,7 @@ def seed(engine) -> None:
                     "INSERT INTO core_holding (customer_id, product_id, qty, cost_amount, "
                     "market_value, pnl_pct, as_of) VALUES (:c, :p, :q, :cost, :cost, 0, :d)"
                 ),
-                {"c": CUSTOMER, "p": pid, "q": qty, "cost": cost, "d": date(2026, 8, 1)},
+                {"c": CUSTOMER, "p": pid, "q": qty, "cost": cost, "d": _BOOT_AS_OF},
             )
 
 
@@ -183,7 +210,7 @@ def assert_subscribe(admin, writer, core) -> None:
         "confirmed_at = T",
         str(q1(admin, "SELECT confirmed_at FROM core_share_lot WHERE customer_id = :c AND product_id = :p",
                c=CUSTOMER, p=PROD_SUB)),
-        "2026-09-04 14:00:00",
+        str(TRADE_AT),
     )
 
 
@@ -310,6 +337,7 @@ def assert_rebuild_lots(admin) -> None:
 
 def main() -> int:
     admin = get_engine(settings.mysql_core_database, "admin")
+    _init_dates(admin)
     try:
         with admin.connect() as conn:
             conn.execute(text("SELECT 1"))