Anchor semi exit to strike +/- move points; side-by-side semi cards.

Forward target is K+/-N not spot+/-N; UI shows option target and perp net lock.

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

backend/app/strategy/engine.py

@@ -978,9 +978,9 @@ class StrategyEngine:
                     rk = 1.0
                 semi_d = check_semi_exits(
                     net_pnl=float(upl.get("net_pnl") or 0),
-                    entry_index=(
-                        float(upl["entry_index_px"])
-                        if upl.get("entry_index_px") is not None
+                    strike=(
+                        float(upl["strike"])
+                        if upl.get("strike") is not None
                         else None
                     ),
                     index_px=(
@@ -992,6 +992,11 @@ class StrategyEngine:
                     option_move_points=float(sp["option_move_points"]),
                     perp_exit_unit=float(sp["perp_exit_unit"]),
                     risk_k=rk,
+                    entry_index=(
+                        float(upl["entry_index_px"])
+                        if upl.get("entry_index_px") is not None
+                        else None
+                    ),
                 )
                 # 复用 ExitDecision 形态
                 from .exits import ExitDecision