Replace 期期 equal-split with long/short bias sizing and env ratio controls.

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

lib/env/env_ui_manifest.py

@@ -146,6 +146,16 @@ _HEDGE_PLAN_SECTION: dict[str, Any] = {
             "期期平仓模式(方案C)",
             "默认 true;开启后页面可选「到期平/全平」(盈利腿平后另一腿);关闭则固定到期平",
         ),
+        (
+            "HEDGE_PLAN_OO_BIAS_SPLIT_BY",
+            "期期做多做空拆分口径",
+            "默认预算金额;budget=按权利金预算按比例分两腿;sheets=先算同张数 n 再按比例拆张数",
+        ),
+        (
+            "HEDGE_PLAN_OO_BIAS_RATIO",
+            "期期做多做空主腿占比",
+            "默认 0.7(即 7:3);做多主腿=Call,做空主腿=Put;须在 0~1 之间",
+        ),
         (
             "HEDGE_PLAN_OPTIONS_MUTUAL_EXCLUSIVE",
             "对冲与期权互斥门控",
@@ -177,6 +187,8 @@ _RUNTIME_ENV_DEFAULTS: dict[str, str] = {
     "HEDGE_PLAN_SHOW_PERP_OPTIONS": "true",
     "HEDGE_PLAN_SHOW_OPTIONS_OPTIONS": "true",
     "HEDGE_PLAN_OO_CLOSE_MODE_ENABLED": "true",
+    "HEDGE_PLAN_OO_BIAS_SPLIT_BY": "budget",
+    "HEDGE_PLAN_OO_BIAS_RATIO": "0.7",
     "HEDGE_PLAN_OPTIONS_MUTUAL_EXCLUSIVE": "true",
     "HEDGE_PLAN_MANUAL_COMPLETE_ON_PARTIAL": "true",
 }