Make options target close gate configurable via env.

Support premium multiplier (coin default 1.05) or net-PnL USDT threshold with index conversion.

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

lib/env/env_schema.py

@@ -106,6 +106,11 @@ HOT_RELOAD_EXACT = frozenset({
     "OKX_OPTIONS_COIN_MAX_USDT_ENABLED",
     "OKX_OPTIONS_COIN_MAX_USDT",
     "OKX_OPTIONS_COIN_SPOT_BUY_BUFFER",
+    "OKX_OPTIONS_CLOSE_GATE_MODE",
+    "OKX_OPTIONS_CLOSE_RECYCLE_MULT",
+    "OKX_OPTIONS_CLOSE_RECYCLE_MULT_COIN",
+    "OKX_OPTIONS_CLOSE_NET_PNL_MIN_USDT",
+    "OKX_OPTIONS_CLOSE_HOLD_SECONDS",
     "OKX_TRADE_MODE",
     "MAX_ACTIVE_HEDGE_PLANS",
     "HEDGE_PLAN_LIVE_ORDER",
@@ -171,6 +176,10 @@ SELECT_OPTIONS: dict[str, tuple[tuple[str, str], ...]] = {
         ("coin", "币本位(USDT买币桥)"),
         ("usdc", "USDC(USDⓈ权利金)"),
     ),
+    "OKX_OPTIONS_CLOSE_GATE_MODE": (
+        ("premium", "权利金倍数"),
+        ("net_pnl", "净盈亏(USDT)"),
+    ),
     "HEDGE_PLAN_OPTION_PRIMARY": (
         ("true", "以期权为主"),
         ("false", "保险模式"),