Always show logout and render a single underlying text label.

Move exit next to the theme toggle so it remains visible when APP_AUTH_DISABLED=true; PO select shows only ETH or BTC copy.

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

lib/common/static/hedge_plan.js

@@ -76,15 +76,15 @@
     const opt = state.optionUnderly || "ETH";
     const perp = state.perpUnderly || opt;
     const modeLabel = root.getAttribute("data-po-mode-label") || poMode;
-    // 实例模式锁定:手动选约只显示一种标的(不展示 ETH/BTC 双钮)
+    // 实例模式锁定:手动选约只显示一种标的文案(ETH 或 BTC;跨币写 BTC→ETH)
     const single = $("hp-uly-single");
     if (single) {
       single.textContent = crossAsset ? opt + "→" + perp : opt;
-      single.title = "由 HEDGE_PO_MODE 锁定(" + modeLabel + "),不可页内切换";
+      single.title = "本实例模式 " + modeLabel + "，标的固定不可切换";
     }
-    document.querySelectorAll(".hp-uly-btn").forEach(function (b) {
-      b.hidden = true;
-      b.disabled = true;
+    // 彻底去掉永期页残留双钮(若有)
+    document.querySelectorAll("#hp-tab-perp_options .hp-uly-btn, #hp-po-layout .hp-uly-btn").forEach(function (b) {
+      b.remove();
     });
     const badge = $("hp-po-mode-badge");
     if (badge) {