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/bible-view.js

@@ -63,7 +63,7 @@ function bbPaint(root) { // highlights, notes and picked verses, on top of the t
 }
 
 async function viewBible(args = []) {
-  const v = $('#view'); v.innerHTML = '<div class="wrap"><h1>Bible</h1><p class="empty">Loading the Bible…</p></div>';
+  const v = $('#view'); v.innerHTML = '<div class="wrap"><h1>Bible</h1><p class="empty loading" role="status">Loading the Bible…</p></div>';
   try { await bbLoad(); } catch (e) { v.innerHTML = `<div class="wrap"><h1>Bible</h1><p class="err">${esc(e.message)}</p><div class="bar"><button class="btn ghost" id="bbretry">Try again</button></div></div>`; $('#bbretry').onclick = () => route(); return; }
   if (!location.hash.startsWith('#/bible')) return;
   try { const s = await bbApi('/state'); bbSt = s; } catch {}