Nuggets: optional link (e.g. YouTube) on host profiles; v2.47.0

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

src/AdminPage.tsx

@@ -6706,6 +6706,14 @@ const [dashboardNow, setDashboardNow] = useState(() => new Date())
                           <label>Bio</label>
                           <textarea rows={8} value={host.bio} onChange={e => updateHost(host.id, { bio: e.target.value })} />
                         </div>
+                        <div className="admin-field">
+                          <label>Link URL (optional)</label>
+                          <input type="url" placeholder="https://youtube.com/@channel" value={host.linkUrl ?? ''} onChange={e => updateHost(host.id, { linkUrl: e.target.value })} />
+                        </div>
+                        <div className="admin-field">
+                          <label>Link Label (optional)</label>
+                          <input type="text" placeholder="Watch more on YouTube" value={host.linkLabel ?? ''} onChange={e => updateHost(host.id, { linkLabel: e.target.value })} />
+                        </div>
                         <div className="admin-field">
                           <label>Photo</label>
                           <input type="text" placeholder="/uploads/host-photo.jpg" value={host.imageUrl} onChange={e => updateHost(host.id, { imageUrl: e.target.value })} />