Store: one tab combining books, free audiobooks and radio, plus My Store for your own books, music, apps and sandboxed extensions

- Store tab with sections; the book store, LibriVox and radio finder are shown inside it (old entry points redirect)
- My Store: admin uploads files or copies from Seafile; books go to a person's shelf, music plays in the player, apps download
- Extensions: one HTML file run in a sandboxed frame with a small storage/toast/user bridge; example in docs/extensions

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

public/app.js

@@ -93,6 +93,8 @@ const ICONS = {
   shuffle: '<path d="M3 7h3c4 0 5 10 9 10h6M3 17h3c1.5 0 2.5-1.5 3.5-3M15 7h6M18 4l3 3-3 3M18 14l3 3-3 3"/>',
   more: '<circle cx="5" cy="12" r="1.6" fill="currentColor"/><circle cx="12" cy="12" r="1.6" fill="currentColor"/><circle cx="19" cy="12" r="1.6" fill="currentColor"/>',
   cal: '<rect x="3" y="5" width="18" height="16" rx="2"/><path d="M3 10h18M8 3v4M16 3v4"/>',
+  store: '<path d="M4 9l1.5-5h13L20 9M4 9v11h16V9M4 9c0 1.7 1.3 3 3 3s3-1.3 3-3c0 1.7 1.3 3 3 3s3-1.3 3-3 1.3 3 3 3"/><path d="M10 20v-5h4v5"/>',
+  download: '<path d="M12 4v11M7 11l5 5 5-5M5 20h14"/>',
   chef: '<path d="M7 14a4 4 0 11.8-7.9A4 4 0 0116 6.5 4 4 0 0117 14v6H7z"/><path d="M7 17h10"/>',
   people: '<circle cx="9" cy="8" r="3.5"/><path d="M2.5 20a6.5 6.5 0 0113 0M16 4.5a3.5 3.5 0 010 7M18 14a6 6 0 013.5 6"/>',
   search: '<circle cx="11" cy="11" r="7"/><path d="M20 20l-4-4"/>',
@@ -162,8 +164,8 @@ const fmtSize = b => b < 1024 ? b + ' B' : b < 1048576 ? (b / 1024).toFixed(0) +
 const fmtDate = s => new Date(s * 1000).toLocaleDateString(undefined, { month: 'short', day: 'numeric', year: 'numeric' });
 
 // ---- Navigation
-const TABS = [['home', 'Home'], ['files', 'Files'], ['music', 'Music'], ['video', 'Movies & TV'], ['mail', 'Mail'], ['contacts', 'Contacts'], ['signal', 'Signal'], ['tasks', 'Tasks'], ['recipes', 'Recipes'], ['calendar', 'Calendar'], ['search', 'Search'], ['links', 'Links'], ['office', 'Office'], ['audio', 'Audiobooks'], ['podcast', 'Podcast'], ['radio', 'Radio'], ['bible', 'Bible'], ['read', 'Books'], ['verse', 'Podcast Admin'], ['settings', 'Settings']];
-const TAB_ICON = { home: 'home', mail: 'mail', signal: 'chat', files: 'files', office: 'doc', audio: 'audio', verse: 'book', podcast: 'mic', radio: 'radio', bible: 'bible', recipes: 'chef', contacts: 'people', listen: 'audio', reading: 'book', read: 'book', music: 'music', video: 'film', settings: 'cog', calendar: 'cal', search: 'search', tasks: 'check', links: 'link', planner: 'cal' };
+const TABS = [['home', 'Home'], ['files', 'Files'], ['music', 'Music'], ['video', 'Movies & TV'], ['mail', 'Mail'], ['contacts', 'Contacts'], ['signal', 'Signal'], ['tasks', 'Tasks'], ['recipes', 'Recipes'], ['store', 'Store'], ['calendar', 'Calendar'], ['search', 'Search'], ['links', 'Links'], ['office', 'Office'], ['audio', 'Audiobooks'], ['podcast', 'Podcast'], ['radio', 'Radio'], ['bible', 'Bible'], ['read', 'Books'], ['verse', 'Podcast Admin'], ['settings', 'Settings']];
+const TAB_ICON = { home: 'home', mail: 'mail', signal: 'chat', files: 'files', office: 'doc', audio: 'audio', verse: 'book', podcast: 'mic', radio: 'radio', bible: 'bible', recipes: 'chef', contacts: 'people', store: 'store', listen: 'audio', reading: 'book', read: 'book', music: 'music', video: 'film', settings: 'cog', calendar: 'cal', search: 'search', tasks: 'check', links: 'link', planner: 'cal' };
 /** The menu entries this person sees: Calendar and Tasks share one "Planner" entry, and the listening and reading tabs share "Listen" and "Read" (each part still needs its own permission). */
 const leafOf = id => Object.keys(MERGED).find(k => MERGED[k][1].includes(id));
 const navTabs = () => { const out = [], done = new Set(); for (const t of TABS) { if (t[0] === 'verse' || !allowed(t[0])) continue; let id = t[0], label = t[1];
@@ -173,14 +175,14 @@ const navTabs = () => { const out = [], done = new Set(); for (const t of TABS)
 const leafTabs = () => TABS.filter(t => t[0] !== 'verse' && t[0] !== 'home' && allowed(t[0]));
 const tabLabel = id => (TABS.find(x => x[0] === id) || (MERGED[id] ? [0, MERGED[id][0]] : id === 'planner' ? [0, 'Planner'] : [0, '']))[1];
 /** Menu entries grouped by kind. Anything not listed lands in the last group so a new tab is never lost. */
-const NAV_GROUPS = [['', ['home', 'search']], ['Work', ['planner', 'files', 'office', 'links', 'recipes']], ['Communicate', ['mail', 'contacts', 'signal']], ['Media', ['listen', 'reading', 'video']], ['', ['settings']]];
+const NAV_GROUPS = [['', ['home', 'search']], ['Work', ['planner', 'files', 'office', 'links', 'recipes']], ['Communicate', ['mail', 'contacts', 'signal']], ['Media', ['listen', 'reading', 'video', 'store']], ['', ['settings']]];
 const navGroups = (tabs = navTabs()) => {
   const out = NAV_GROUPS.map(([label, ids]) => ({ label, tabs: ids.map(id => tabs.find(t => t[0] === id)).filter(Boolean) }));
   const known = new Set(NAV_GROUPS.flatMap(g => g[1])); out[out.length - 2].tabs.push(...tabs.filter(t => !known.has(t[0])));
   return out.filter(g => g.tabs.length);
 };
 const sg = { st: null, convs: [], cur: null, unread: 0, es: null, timers: [], reply: null, tray: [], names: {} }; // Signal state
-const TAB_COLOR = { home: '#3d6bf0', search: '#6b7280', planner: '#d9453a', tasks: '#d9453a', calendar: '#d9453a', files: '#2f9e6e', office: '#e0742b', links: '#0f9d9a', mail: '#4f7cff', signal: '#3a76f0', listen: '#8a5cf0', music: '#e5a00d', radio: '#7b4fd6', recipes: '#e0742b', contacts: '#5b8def', podcast: '#c2417a', audio: '#8a5cf0', video: '#c0392b', reading: '#2b8a5e', bible: '#8b5a2b', read: '#2b8a5e', settings: '#6a7280' };
+const TAB_COLOR = { home: '#3d6bf0', search: '#6b7280', planner: '#d9453a', tasks: '#d9453a', calendar: '#d9453a', files: '#2f9e6e', office: '#e0742b', links: '#0f9d9a', mail: '#4f7cff', signal: '#3a76f0', listen: '#8a5cf0', music: '#e5a00d', radio: '#7b4fd6', store: '#d9822b', recipes: '#e0742b', contacts: '#5b8def', podcast: '#c2417a', audio: '#8a5cf0', video: '#c0392b', reading: '#2b8a5e', bible: '#8b5a2b', read: '#2b8a5e', settings: '#6a7280' };
 // The phone's bottom bar shows up to five entries you choose (Edit bottom bar, in the Apps sheet), then "More".
 const DEFAULT_PINS = ['home', 'files', 'planner', 'listen', 'mail'];
 const navPins = () => { const have = new Set(navTabs().map(t => t[0])), saved = store.get('nav_pins'); const out = (Array.isArray(saved) && saved.length ? saved : DEFAULT_PINS).filter(id => have.has(id)).slice(0, 5); return out.length ? out : [...have].slice(0, 4); };
@@ -250,7 +252,7 @@ function drawSubnav(name) {
 const navIdOf = name => name === 'edit' ? 'files' : (name === 'tasks' || name === 'calendar') ? 'planner' : leafOf(name) || name;
 let curRoute = '';
 
-const routesOf = () => ({ video: viewVideo, planner: viewPlanner, home: viewHome, mail: viewMail, files: viewFiles, office: viewOffice, audio: args => args[0] === 'classic' ? viewAudio() : args[0] === 'free' ? viewFreeBooks() : viewBooks(args), verse: () => location.replace('#/links'), podcast: args => args[0] === 'vbv' ? viewVbv(args.slice(1)) : viewPodcast(args), radio: viewRadio, recipes: args => viewRecipes(args), contacts: args => viewContacts(args), bible: args => viewBible(args), listen: () => location.replace('#/' + lastSub('listen')), reading: () => location.replace('#/' + lastSub('reading')), read: args => viewReader(args), music: viewMusic, tasks: viewTasks, search: viewSearch, calendar: viewCalendar, signal: viewSignal, links: viewLinks, settings: viewSettings, edit: viewEdit });
+const routesOf = () => ({ video: viewVideo, planner: viewPlanner, home: viewHome, mail: viewMail, files: viewFiles, office: viewOffice, audio: args => args[0] === 'classic' ? viewAudio() : args[0] === 'free' ? (allowed('store') ? location.replace('#/store/audiobooks') : viewFreeBooks()) : viewBooks(args), verse: () => location.replace('#/links'), podcast: args => args[0] === 'vbv' ? viewVbv(args.slice(1)) : viewPodcast(args), radio: viewRadio, recipes: args => viewRecipes(args), store: args => viewStore(args), contacts: args => viewContacts(args), bible: args => viewBible(args), listen: () => location.replace('#/' + lastSub('listen')), reading: () => location.replace('#/' + lastSub('reading')), read: args => viewReader(args), music: viewMusic, tasks: viewTasks, search: viewSearch, calendar: viewCalendar, signal: viewSignal, links: viewLinks, settings: viewSettings, edit: viewEdit });
 let editor;
 // Menu on a tablet or computer: collapse it to icons (wide screens), or hide it completely. Remembered on this device.
 const navPref = () => { try { return JSON.parse(localStorage.getItem('nav_pref')) || {}; } catch { return {}; } };
@@ -318,6 +320,7 @@ function homeApps() {
     office: () => tile('#/office', '#e0742b', 'doc', 'Office', 'OnlyOffice'),
     audio: () => tile('#/audio', '#8a5cf0', 'audio', 'Audiobooks', 'Listen'),
     podcast: () => tile('#/podcast', '#c2417a', 'mic', 'Podcast', 'Podcasts'),
+    store: () => tile('#/store', '#d9822b', 'store', 'Store', 'Books, audiobooks, radio & more'),
     recipes: () => tile('#/recipes', '#e0742b', 'chef', 'Recipes', 'Mealie & shopping list'),
     contacts: () => tile('#/contacts', '#5b8def', 'people', 'Contacts', 'People & birthdays'),
     radio: () => tile('#/radio', '#7b4fd6', 'radio', 'Radio', 'The Journey FM & more'),
@@ -327,7 +330,7 @@ function homeApps() {
     mail: () => tile('#/mail', '#4f7cff', 'mail', 'Mail', mailUnread ? mailUnread + ' unread' : 'Outlook.com'),
   };
   T.bible = () => tile('#/bible', '#8b5a2b', 'bible', 'Bible', 'Berean Standard Bible');
-  const HOME_GROUPS = [['Work', ['planner', 'files', 'office', 'links', 'recipes']], ['Communicate', ['mail', 'contacts', 'signal']], ['Listen', ['music', 'radio', 'podcast', 'audio']], ['Read and watch', ['bible', 'read', 'video']]];
+  const HOME_GROUPS = [['Work', ['planner', 'files', 'office', 'links', 'recipes']], ['Communicate', ['mail', 'contacts', 'signal']], ['Listen', ['music', 'radio', 'podcast', 'audio']], ['Read and watch', ['bible', 'read', 'video', 'store']]];
   return HOME_GROUPS.map(([label, ids]) => [label, ids.filter(id => T[id] && allowed(id))]).filter(g => g[1].length).map(([label, ids]) => `<h2>${esc(label)}</h2><div class="grid">${ids.map(id => T[id]()).join('')}</div>`).join('');
 }