Polish: npm test runs every test file, two silent failures now log, Loading placeholders shimmer

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

public/vbv-view.js

@@ -20,7 +20,7 @@ const vbDate = d => { const t = Date.parse(d); return t > 0 ? new Date(t).toLoca
 const vbCover = (s, big) => `<span class="vimg" style="aspect-ratio:1/1;background:var(--panel2)"><img loading="lazy" alt="" referrerpolicy="no-referrer" src="${esc(stOk(s.cover))}" onerror="this.remove()"></span>`;
 
 async function viewVbv(args = []) {
-  const v = $('#view'); v.innerHTML = '<div class="wrap"><h1>Verse By Verse</h1><p class="empty">Loading…</p></div>';
+  const v = $('#view'); v.innerHTML = '<div class="wrap"><h1>Verse By Verse</h1><p class="empty loading" role="status">Loading…</p></div>';
   try { await vbLoadProg(); if (args[0] === 'study' && args[1]) return await vbStudy(args[1]); return await vbHome(); }
   catch (e) { if (!location.hash.startsWith('#/podcast/vbv')) return; v.innerHTML = `<div class="wrap"><a class="btn ghost" href="#/podcast">${icon('back')}Podcast</a><h1>Verse By Verse</h1><p class="err">${esc(e.message)}</p><div class="bar"><button class="btn ghost" id="vbretry">Try again</button><a class="btn ghost" href="https://versebyverseministry.org" target="_blank" rel="noopener">Open the website</a></div></div>`; $('#vbretry').onclick = () => route(); }
 }