Add OKX three-way trade mode for options vs hedge.

Env OKX_TRADE_MODE selects standalone options, perp hedge, or OO hedge; hide the other module UI and use group or position limits per mode.

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

lib/env/env_schema.py

@@ -91,6 +91,8 @@ HOT_RELOAD_EXACT = frozenset({
     "HEDGE_PLAN_SHOW_OPTIONS_OPTIONS",
     "OKX_OPTIONS_CHAIN_ASK_LIQ_FILTER_ENABLED",
     "OKX_OPTIONS_MAX_ACTIVE_POSITIONS",
+    "OKX_TRADE_MODE",
+    "MAX_ACTIVE_HEDGE_PLANS",
     "HEDGE_PLAN_LIVE_ORDER",
     "HEDGE_PLAN_OPEN_ORDER",
     "HEDGE_PLAN_ON_PERP_SL_CLOSE_OPTIONS",
@@ -145,6 +147,11 @@ SELECT_OPTIONS: dict[str, tuple[tuple[str, str], ...]] = {
         ("budget", "预算金额"),
         ("sheets", "张数"),
     ),
+    "OKX_TRADE_MODE": (
+        ("options", "单独期权"),
+        ("perp_options", "永期对冲"),
+        ("options_options", "期期对冲"),
+    ),
 }
 
 _SELECT_ALIASES: dict[str, dict[str, str]] = {