Make hedge the default home and drop unused product-surface entries.

Put永期/期期对冲 first in nav, default embed tab to hedge_plan, and remove risk-policy/options-account UI instead of only hiding them.

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

lib/env/env_ui_manifest.py

@@ -501,8 +501,14 @@ def ui_sections_for_exchange(
         if not m:
             m = _okx_mode_for_env_ui()
         sections.append(_MODE_SECTION)
-        # 单独期权模式才展示「期权账户」;对冲模式相关项已并入下方对冲分区
-        if m == "options":
+        # 本仓默认无「期权账户」;仅紧急打开 STANDALONE_OPTIONS_UI 且单独期权模式才展示
+        try:
+            from lib.hedge_plan.okx_trade_mode_lib import standalone_options_ui_enabled
+
+            _show_opt_acct = standalone_options_ui_enabled() and m == "options"
+        except Exception:
+            _show_opt_acct = False
+        if _show_opt_acct:
             sections.append({"title": "期权账户", "fields": _options_fields_for_mode(m)})
         hedge_fields = _hedge_fields_for_mode(m)
         if hedge_fields: