feat(versions): shared identity/UI/settings tabs and denser desktop form

Keep the same pill nav on all three Khanegi version pages, tighten the identity form on desktop, and split catalog add/delete into separate modals.

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

src/layouts/AppLayout.vue

@@ -103,19 +103,21 @@ onMounted(loadSmsToggle)
   min-height: 100vh;
   max-width: 100%;
   background: #eef2f7;
-  overflow-x: hidden;
+  padding-top: 64px;
 }
 
 .topbar {
-  position: sticky;
+  position: fixed;
   top: 0;
-  z-index: 40;
+  right: 0;
+  left: 0;
+  z-index: 100;
   display: flex;
   align-items: center;
   justify-content: space-between;
   gap: 12px;
   padding: 14px 16px;
-  background: rgba(255, 255, 255, 0.88);
+  background: rgba(255, 255, 255, 0.96);
   backdrop-filter: blur(12px);
   border-bottom: 1px solid #e8eef5;
 }
@@ -235,6 +237,7 @@ onMounted(loadSmsToggle)
 }
 
 @media (min-width: 768px) {
+  .shell { padding-top: 72px; }
   .topbar { padding: 16px 24px; }
   .content { padding: 24px; }
 }