Expose sim/live matching mode in env config UI.

Saving SIM_DEFAULT_MODE also switches runtime trading.mode immediately.

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

lib/env/env_ui_manifest.py

@@ -19,7 +19,12 @@ from lib.env.env_schema import (
 # 各所「交易所与实盘」字段(顺序即页面顺序)
 _EXCHANGE_LIVE_FIELDS: dict[str, list[tuple[str, str, str]]] = {
     "okx": [
-        ("LIVE_TRADING_ENABLED", "开启实盘下单", "关闭时仅走本地流程,不向交易所发单"),
+        (
+            "SIM_DEFAULT_MODE",
+            "撮合模式",
+            "sim=本地模拟资金(公开行情撮合,不下真实单); live=实盘账户.保存后立即切换",
+        ),
+        ("LIVE_TRADING_ENABLED", "开启实盘下单", "仅 live 模式下生效;关闭时即使 live 也不向交易所发单"),
         ("OKX_API_KEY", "API Key", "账户 API(永续+期权共用)"),
         ("OKX_API_SECRET", "API Secret", "账户 API(永续+期权共用)"),
         ("OKX_API_PASSPHRASE", "API Passphrase", "OKX 必填"),
@@ -291,6 +296,7 @@ _RUNTIME_ENV_DEFAULTS: dict[str, str] = {
     "OKX_OPTIONS_MAX_DTE_DAYS": "2",
     "OKX_OPTIONS_MAX_ACTIVE_POSITIONS": "0",
     "OKX_TRADE_MODE": "options",
+    "SIM_DEFAULT_MODE": "sim",
     "MAX_ACTIVE_HEDGE_PLANS": "1",
     "HEDGE_PLAN_OO_CLOSE_MODE_ENABLED": "true",
     "HEDGE_PLAN_OO_BIAS_SPLIT_BY": "budget",
@@ -303,6 +309,16 @@ _RUNTIME_ENV_DEFAULTS: dict[str, str] = {
 
 
 def _effective_env_value(key: str, file_values: dict[str, str], schema_default: str = "") -> str:
+    if key == "SIM_DEFAULT_MODE":
+        # 展示当前生效撮合模式(运行时 trading.mode 优先)
+        try:
+            from lib.sim.mode_lib import peek_persisted_trading_mode
+
+            cur = peek_persisted_trading_mode()
+            if cur:
+                return cur
+        except Exception:
+            pass
     if key == "OKX_TRADE_MODE":
         # 展示值必须与运行时 get_okx_trade_mode() 一致,避免未写入时默认 options 静默改模式
         file_val = str(file_values.get(key) or "").strip() if key in file_values else ""