Add header link to Selectable Face Swap space

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

static/app.css

@@ -28,6 +28,9 @@ footer{display:none!important}
     padding:14px 24px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;
 }
 .app-header-left{display:flex;align-items:center;gap:12px}
+.app-header-right{display:flex;align-items:center}
+.app-header-link{color:#ff80c0;font-size:13px;font-weight:500;text-decoration:none;white-space:nowrap;opacity:.85;transition:opacity .15s}
+.app-header-link:hover{opacity:1;text-decoration:underline}
 .app-logo{
     width:36px;height:36px;background:linear-gradient(135deg,#ff0080,#ff4da6,#ff80c0);
     border-radius:10px;display:flex;align-items:center;justify-content:center;

templates/app.html

@@ -7,6 +7,9 @@
             <span class="app-badge">v1.1</span>
             <span class="app-badge fast">4-Step Fast</span>
         </div>
+        <div class="app-header-right">
+            <a href="https://huggingface.co/spaces/someone-in-the-world/Selectable-Face-Swap" target="_blank" class="app-header-link">Also try: Selectable Face Swap &#8594;</a>
+        </div>
     </div>
 
     <div class="app-notice">