Extend semi-auto with ITM/ATM/OTM, offset, and 1:4 sizing.

Moneyness and perp:option units are plan-only; OTM enforces leverage >=180.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/app/strategy/open_pipeline.py

@@ -76,10 +76,27 @@ def size_and_gate(
             if not rs.ok:
                 return OpenPrepResult(ok=False, detail=rs.detail, sizing_detail=rs.detail)
         else:
+            from ..sim.ledger import Ledger
+            from .risk_sizing import is_risk_based
+            from .semi_auto import is_semi_auto, read_semi_params
+
+            led = Ledger(database)
+            semi_perp = None
+            semi_opt = None
+            if is_semi_auto(led):
+                sp = read_semi_params(led)
+                semi_perp = float(sp["perp_unit"])
+                semi_opt = float(sp["option_unit"])
+                if not is_risk_based(led):
+                    # 手动仓：半自动直接写入 永续:期权 配比名义
+                    database.set_setting("perp_qty_eth", f"{semi_perp:.4f}")
+                    database.set_setting("option_qty_eth", f"{semi_opt:.4f}")
             rs = apply_risk_sizing_to_ledger(
                 index_px=float(index_px),
                 option_ask=float(option_ask),
                 db=database,
+                perp_unit=semi_perp,
+                option_unit=semi_opt,
             )
             if not rs.ok:
                 return OpenPrepResult(ok=False, detail=rs.detail, sizing_detail=rs.detail)