fix: 版本号显示 — 始终设 current_version + 顶栏按钮显示版本

static/web_panel/js/app.js

@@ -17,14 +17,15 @@ async function checkTopUpdate() {
   var btn = document.getElementById("top-ver-btn");
   try {
     var r = await fetch("./api/updates"), d = await r.json();
-    btn.textContent = d.current_version || d.latest_version || "v?";
+    var ver = d.current_version || d.latest_version || "";
+    btn.textContent = ver ? ver : "v?";
     if (d.update_available) {
-      btn.textContent = "🔄 " + d.latest_version;
+      btn.textContent = "↻ " + d.latest_version + " 可用";
       btn.style.color = "var(--success)";
       btn.title = "新版本可用! " + d.latest_version;
-    } else {
+    } else if (ver) {
       btn.style.color = "";
-      btn.title = "已是最新";
+      btn.title = "已是最新 " + ver;
     }
   } catch(e) {}
 }