Fix: Remove autofocus warning in iframe

- Replace autofocus attribute with JavaScript focus
- Add try-catch to silently handle iframe blocking
- Improves UX when embedded in Hugging Face Spaces

Removes browser console warning about blocked autofocus

app/templates/login.html

@@ -27,12 +27,23 @@
                 <div class="mb-3">
                     <label for="token" class="form-label">Access Token</label>
                     <input type="text" class="form-control form-control-lg" id="token" name="token"
-                           placeholder="Enter your token" required autofocus>
+                           placeholder="Enter your token" required>
                 </div>
 
                 <button type="submit" class="btn btn-primary btn-lg w-100">Login</button>
             </form>
 
+            <script>
+            // Focus input field with delay to work in iframes
+            setTimeout(function() {
+                try {
+                    document.getElementById('token').focus();
+                } catch(e) {
+                    // Silently fail if blocked by browser
+                }
+            }, 100);
+            </script>
+
             <div class="mt-4 pt-4 border-top text-center">
                 <a href="{{ url_for('auth.generate') }}" class="btn btn-success btn-sm">
                     <i class="bi bi-key-fill"></i> Don't have a token? Generate one here