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/semi_auto.py

@@ -201,17 +201,18 @@ class SemiExitDecision:
 def check_semi_exits(
     *,
     net_pnl: float,
-    entry_index: float | None,
+    strike: float | None,
     index_px: float | None,
     view_side: str,
     option_move_points: float,
     perp_exit_unit: float,
     risk_k: float = 1.0,
+    entry_index: float | None = None,
 ) -> SemiExitDecision:
     """
-    顺方向：标的波动达到目标点 且 组合净利>0 → 全平。
-    逆方向兑现：组合净利 ≥ 永续出场基数×k → 全平。
-    流动性在 close_group 内再验；平仓顺序已是先期权后永续。
+    顺方向：指数到达「行权价 ± 波动点」且组合净利>0 → 全平。
+      多/Call：目标 = K + N；空/Put：目标 = K − N（N 为设置的波动点，不是现价±N）。
+    逆方向兑现（永续锁定净利）：组合净利 ≥ 净利基数×k → 全平。
     """
     view = (view_side or "long").strip().lower()
     if view not in ("long", "short"):
@@ -221,34 +222,39 @@ def check_semi_exits(
     net_tgt = max(0.0, float(perp_exit_unit)) * k
     net = float(net_pnl)
 
-    # 逆方向 / 对冲兑现：净利达标即可离场（不必等点位）
+    # 逆方向 / 永续净利锁定：达标即可离场（不必等点位）
     if net_tgt > 0 and net + 1e-9 >= net_tgt:
         return SemiExitDecision(
             True,
             REASON_PERP_NET,
-            f"半自动·净利≥{net_tgt:.2f}U（基数×k）",
+            f"半自动·永续净利锁定≥{net_tgt:.2f}U（基数×k）",
             net_target=net_tgt,
         )
 
-    if entry_index is None or index_px is None:
+    if index_px is None:
         return SemiExitDecision(False, "", "缺指数")
-    entry = float(entry_index)
     idx = float(index_px)
-    if entry <= 0 or idx <= 0 or move <= 0:
+    # 锚定行权价；无 strike 时才回退开仓指数（兼容旧仓）
+    anchor = None
+    if strike is not None and float(strike) > 0:
+        anchor = float(strike)
+    elif entry_index is not None and float(entry_index) > 0:
+        anchor = float(entry_index)
+    if anchor is None or idx <= 0 or move <= 0:
         return SemiExitDecision(False, "", "点位无效")
 
     if view == "long":
-        target_idx = entry + move
+        target_idx = anchor + move
         hit = idx + 1e-9 >= target_idx
     else:
-        target_idx = entry - move
+        target_idx = anchor - move
         hit = idx - 1e-9 <= target_idx
 
     if hit and net > 0:
         return SemiExitDecision(
             True,
             REASON_POINTS,
-            f"半自动·标的到{target_idx:.2f}且组合净利>0",
+            f"半自动·指数到期权目标{target_idx:.2f}（K{anchor:g}±{move:g}）且净利>0",
             target_index=target_idx,
             net_target=0.0,
         )
@@ -256,13 +262,13 @@ def check_semi_exits(
         return SemiExitDecision(
             False,
             "",
-            f"已到点位{target_idx:.2f}但组合净利≤0（{net:.2f}），继续持有",
+            f"已到期权目标{target_idx:.2f}但组合净利≤0（{net:.2f}），继续持有",
             target_index=target_idx,
         )
     return SemiExitDecision(
         False,
         "",
-        f"未到点位（目标{target_idx:.2f}）",
+        f"未到期权目标（K{anchor:g}→{target_idx:.2f}）",
         target_index=target_idx,
         net_target=net_tgt,
     )