Preflight options position limit for dual-leg OO hedges.

Reject OO start when max active is under 2 free slots so limit=1 cannot open a half straddle.

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

lib/hedge_plan/hedge_plan_orders_lib.py

@@ -690,7 +690,24 @@ def execute_options_options_start(
     results: list[dict[str, Any]] = []
     leg_a = body.get("leg_a") or {}
     leg_b = body.get("leg_b") or {}
-    a_res = _buy_option(cfg, inst_id=str(leg_a.get("inst_id") or ""), sheets=float(leg_a.get("sheets") or 1), dry_run=dry_run)
+    inst_a = str(leg_a.get("inst_id") or "")
+    inst_b = str(leg_b.get("inst_id") or "")
+    from lib.options.options_position_limit_lib import option_position_limit_block_msg
+
+    pos_limit_msg = option_position_limit_block_msg(
+        cfg.get("exchange_options"),
+        opening_inst_ids=[inst_a, inst_b],
+        fetch_positions=cfg.get("fetch_option_positions"),
+    )
+    if pos_limit_msg:
+        return {
+            "ok": False,
+            "msg": pos_limit_msg,
+            "path": path,
+            "results": [],
+            "refresh": refresh,
+        }
+    a_res = _buy_option(cfg, inst_id=inst_a, sheets=float(leg_a.get("sheets") or 1), dry_run=dry_run)
     results.append({"step": "options_buy_limit", "leg": "a", **a_res})
     if not a_res.get("ok"):
         return {
@@ -700,7 +717,7 @@ def execute_options_options_start(
             "results": results,
             "refresh": refresh,
         }
-    b_res = _buy_option(cfg, inst_id=str(leg_b.get("inst_id") or ""), sheets=float(leg_b.get("sheets") or 1), dry_run=dry_run)
+    b_res = _buy_option(cfg, inst_id=inst_b, sheets=float(leg_b.get("sheets") or 1), dry_run=dry_run)
     results.append({"step": "options_buy_limit", "leg": "b", **b_res})
     if not b_res.get("ok"):
         if not dry_run and partial_auto_close_enabled():