feat: Settings links to the PedsHub account page in a new tab

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Dv6sqaY6Vq3ChZHMem3cnU

public/components/settings.html

@@ -106,6 +106,13 @@
             </div>
           </div>
 
+          <!-- PedsHub account: name, email, passkeys live at the provider -->
+          <div class="settings-section card" id="pedshub-account-section">
+            <h3><i class="fas fa-id-badge"></i> Your PedsHub account</h3>
+            <p style="font-size:13px;color:var(--g600);">Your name, email, passkeys and sign-in devices are managed at PedsHub, which opens in a new tab so this page stays where it is. Close that tab to come back.</p>
+            <a class="btn-sm btn-ghost" href="https://sso.pedshub.com/if/user/#/settings" target="_blank" rel="noopener" id="link-pedshub-account"><i class="fas fa-arrow-up-right-from-square"></i> Manage my PedsHub account</a>
+          </div>
+
           <!-- Nextcloud -->
           <div class="settings-section card" data-feature="nextcloud">
             <h3><i class="fas fa-cloud"></i> Nextcloud Integration</h3>