Add mutual-exclusion gate between hedge plans and standalone options.

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

lib/hedge_plan/hedge_plan_calc_lib.py

@@ -476,6 +476,8 @@ def gate_status(
     max_active: int = 1,
     show_perp_options: bool = True,
     show_options_options: bool = True,
+    mutual_exclusive: bool = True,
+    has_standalone_option: bool = False,
 ) -> dict[str, Any]:
     from lib.trade.position_sizing_lib import is_full_margin_mode
 
@@ -505,6 +507,9 @@ def gate_status(
     if active_count >= max(1, int(max_active or 1)):
         can_start = False
         reasons.append(f"活跃计划已达上限({max_active})")
+    if mutual_exclusive and has_standalone_option:
+        can_start = False
+        reasons.append("存在单独期权持仓,禁止启动对冲计划(互斥门控)")
     if pt == "perp_options":
         if not full:
             can_start = False
@@ -531,6 +536,8 @@ def gate_status(
         "max_active": max_active,
         "show_perp_options": bool(show_perp_options),
         "show_options_options": bool(show_options_options),
+        "mutual_exclusive": bool(mutual_exclusive),
+        "has_standalone_option": bool(has_standalone_option),
         "can_preview": can_preview,
         "can_start": can_start,
         "reasons": reasons,