Tune CoinOX env: drop auto-transfer; map leverage to hedge perp opens.

BTC_LEVERAGE/ALT_LEVERAGE now drive永期永续 default leverage in UI and start fallback.

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

lib/instance/instance_display_prefs_lib.py

@@ -23,7 +23,7 @@ DEFAULT_INSTANCE_DISPLAY: dict[str, bool] = {
     "show_nav_options": True,
     "show_nav_options_review": True,
     "show_nav_hedge_plan": True,
-    "show_settings_transfer": True,
+    "show_settings_transfer": False,  # CoinOX 不需要永续自动划转
     "show_settings_export": True,
     "show_settings_password": True,
     "show_settings_options_swap": False,  # CoinOX 已移除 USDT↔USDC 兑换
@@ -87,6 +87,7 @@ def normalize_display_prefs(raw: dict | None) -> dict[str, bool]:
     out["show_nav_strategy_records"] = False
     out["show_nav_system_guide"] = False
     out["show_settings_options_swap"] = False
+    out["show_settings_transfer"] = False
     return out
 
 
@@ -138,7 +139,6 @@ def display_meta_for_ui() -> list[dict[str, Any]]:
         "show_nav_env_config",
     ]
     settings_keys = [
-        "show_settings_transfer",
         "show_settings_export",
         "show_settings_password",
         "show_settings_options_transfer",