docs(site): publish iOS implementation progress

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

docs-site/download/index.html

@@ -224,6 +224,17 @@ footer a{margin:0 8px}
         </p>
       </div>
 
+      <div class="card">
+        <h2>iPhone &amp; iPad <span class="badge">In development</span></h2>
+        <p class="muted">
+          Native iOS build and TestFlight automation are underway. There is no iOS download yet; availability
+          will be announced only after a real TestFlight build is verified.
+        </p>
+        <div class="cta">
+          <a class="btn" href="../ios/">Follow iOS progress</a>
+        </div>
+      </div>
+
     </div>
   </div>
 </section>