Merge OKX dual APIs into one OKX_API_* account for perp and options.

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

lib/options/templates/options_panel.html

@@ -4,7 +4,7 @@
      data-trade-budget="{{ options_trade_budget | default(10) }}"
      data-ask-liq-filter="{% if options_chain_ask_liq_filter is defined %}{{ '1' if options_chain_ask_liq_filter else '0' }}{% else %}1{% endif %}">
     {% if not options_enabled %}
-    <div class="flash" style="margin-bottom:12px">期权 API 未启用:请在 <code>crypto_monitor_okx/.env</code> 设置 <code>OKX_OPTIONS_ENABLED=true</code> 及主账户 <code>OKX_OPTIONS_API_*</code>,然后 <code>pm2 restart crypto_okx --update-env</code>.</div>
+    <div class="flash" style="margin-bottom:12px">期权未启用:请在 <code>crypto_monitor_okx/.env</code> 设置 <code>OKX_OPTIONS_ENABLED=true</code> 及 <code>OKX_API_*</code>(永续与期权共用),然后 <code>pm2 restart crypto_okx --update-env</code>.</div>
     {% endif %}
     {% if options_enabled and options_open_allowed is defined and not options_open_allowed %}
     <div class="flash" style="margin-bottom:12px">当前交易模式为对冲(永期/期期),不可单独开期权;持仓可在此查看/平仓.切换请到 env「交易模式」.</div>