iPad and Screen Time helper; v2.0 roadmap

- Admin screen: the simple Screen Time setup, the web addresses the app needs, addresses devices were seen reaching, and a Check this device test
- Report-only Content-Security-Policy so devices report any other address a page loads (nothing is blocked)
- Pictures from other sites pass through the hub (/api/img): podcast search covers, Plex Home pictures, a VBV cover, search answers
- docs/v2-roadmap.md: the family-first 2.0 plan, with Family Chat (text only) and no photos or calls

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

public/settings.js

@@ -95,6 +95,7 @@ function viewSettings() {
     <div class="bar"><button class="btn" id="addperson">Add a person</button></div>
     <h2>Health</h2><div class="list" id="health"><div class="row"><span class="grow"><small>Checking…</small></span></div></div>
     <h2>Storage</h2><div class="list" id="stor"><div class="row"><span class="grow"><small>Checking…</small></span></div></div>
+    <h2>iPad and Screen Time</h2><p class="sub" style="white-space:normal">Allow the hub on an iPad with Screen Time web limits, without adding every site one by one.</p><div class="bar"><button class="btn ghost" id="stbtn">Set up Screen Time</button></div>
     <div class="bar"><a class="btn ghost" href="/api/backup" download>Download a backup</a></div><p class="sub">A .tar.gz of everything in /data (accounts, passkeys, tasks, events, settings, Signal history). Keep it private: it holds the session secret and encrypted sign-in tokens. Restore by unpacking it into the data volume.</p>` : ''}
     ${isAdmin ? `<h2>Activity</h2><div class="list" id="audit"><div class="row"><span class="grow"><small>Loading…</small></span></div></div>` : ''}
     </div></div>`;
@@ -130,7 +131,7 @@ function viewSettings() {
     if (st.signedIn) { const b = $('#plexout'); b.hidden = false; b.onclick = async () => { await jfetch('/api/plex/logout', { method: 'POST' }); pl.a.pause(); pl.q = []; pl.i = -1; renderMini(); toast('Signed out of Plex'); viewSettings(); }; }
   }).catch(() => { const el = $('#plexst'); if (el) el.textContent = 'Unavailable'; });
   const lk = $('#lookups'); if (lk) { lk.checked = store.get('lookups', true) !== false; lk.onchange = () => { store.set('lookups', lk.checked); toast(lk.checked ? 'Lookups on' : 'Lookups off'); }; }
-  if (isAdmin) { loadPeople(); $('#addperson').onclick = () => addPersonSheet(); }
+  if (isAdmin) { loadPeople(); $('#addperson').onclick = () => addPersonSheet(); $('#stbtn').onclick = () => screenTimeSheet(); }
   if (isAdmin) jfetch('/api/health').then(h => {
     const row = (t, d, bad) => `<div class="row"><span class="grow"><b>${bad ? '⚠ ' : '✓ '}${t}</b><small style="white-space:normal;${bad ? 'color:var(--danger)' : ''}">${d}</small></span></div>`;
     const gb = n => (n / 1e9).toFixed(1) + ' GB', days = t => Math.floor((Date.now() - t) / 864e5);