Release 2.7.2.4: macOS app icon, glaze UI and auto build numbers.

Add green N AppIcon to the .app bundle, keep WKWebView GUI stable, and stamp builds via BaseVersion/BuildNumber.

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

internal/appui/index.html

@@ -114,7 +114,7 @@
       font-size: .68rem;
       font-weight: 700;
       letter-spacing: .04em;
-      text-transform: uppercase;
+      text-transform: none;
       color: var(--accent-deep);
       background: var(--accent-soft);
       border: 1px solid rgba(13,138,102,.18);
@@ -718,14 +718,17 @@
     <header class="top">
       <div class="logo" aria-hidden="true">
         <svg viewBox="0 0 32 32" fill="none">
-          <path d="M8 26V6h4.2L20 18.4V6H24v20h-4.2L12 13.6V26H8z" fill="#f4fff9"/>
-          <path d="M22.5 8.2l3.2-1.1-1.1 3.2-5.6 5.6 1.6 1.6 5.6-5.6 3.2-1.1-1.1 3.2" fill="#b8f0d8" opacity=".9"/>
+          <!-- Bold N -->
+          <path fill="#f4fff9" d="M8 25.2V7.6h4.4l7.4 11.2V7.6H24v17.6h-4.4L12.2 14V25.2H8z"/>
+          <!-- Plug prongs on left stem -->
+          <rect x="9.05" y="4.2" width="1.55" height="3.6" rx=".45" fill="#f4fff9"/>
+          <rect x="11.55" y="4.2" width="1.55" height="3.6" rx=".45" fill="#f4fff9"/>
         </svg>
       </div>
       <div class="brand-wrap">
         <div class="brand-row">
           <h1 class="brand">Navis</h1>
-          <span class="badge-ver">2.7</span>
+          <span class="badge-ver" id="badgeVer">2.7.2</span>
         </div>
         <p class="tagline">Быстрый клиент · Naive · Hy2 · AWG · Xray</p>
       </div>
@@ -1169,6 +1172,8 @@
 
     function renderUpdate(u, version) {
       verLabel.textContent = "Navis v" + (version || "?");
+      const badge = $("badgeVer");
+      if (badge && version) badge.textContent = version;
       if (!u) {
         updateBanner.classList.remove("show");
         return;