Show semi risk-based open size from ask and unit ratio.

Semi sizing uses market ask with semi units; Plan panel previews option/perp qty under the form.

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

backend/app/strategy/open_pipeline.py

@@ -83,10 +83,15 @@ def size_and_gate(
             led = Ledger(database)
             semi_perp = None
             semi_opt = None
+            semi_exit = None
+            semi_basis = None
             if is_semi_auto(led):
                 sp = read_semi_params(led)
                 semi_perp = float(sp["perp_unit"])
                 semi_opt = float(sp["option_unit"])
+                semi_exit = float(sp["perp_exit_unit"])
+                # 半自动以损定仓：按盘口卖一推期权量，再按配比乘 k 得永续量
+                semi_basis = "actual"
                 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}")
@@ -97,6 +102,8 @@ def size_and_gate(
                 db=database,
                 perp_unit=semi_perp,
                 option_unit=semi_opt,
+                exit_unit=semi_exit,
+                leverage_basis=semi_basis,
             )
             if not rs.ok:
                 return OpenPrepResult(ok=False, detail=rs.detail, sizing_detail=rs.detail)