Fix semi strike-target test not tripping net lock early.

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

backend/tests/test_semi_auto.py

@@ -40,9 +40,9 @@ def test_semi_points_long_needs_net_positive() -> None:
 
 
 def test_semi_points_uses_strike_not_spot() -> None:
-    # 现价 1915、K1930、+50 → 目标 1980；现价未到则不平
+    # 现价 1915、K1930、+50 → 目标 1980；现价未到则不平（净利勿触达锁定）
     d = check_semi_exits(
-        net_pnl=5.0,
+        net_pnl=1.0,
         strike=1930,
         index_px=1915,
         view_side="long",
@@ -54,7 +54,7 @@ def test_semi_points_uses_strike_not_spot() -> None:
     assert d.target_index == 1980.0
 
     d2 = check_semi_exits(
-        net_pnl=5.0,
+        net_pnl=1.0,
         strike=1930,
         index_px=1980,
         view_side="long",