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/contacts-view.js

@@ -13,7 +13,7 @@ const ctFind = (l, address) => { const a = String(address || '').toLowerCase();
 
 async function viewContacts(args = []) {
   const v = $('#view');
-  v.innerHTML = '<div class="wrap"><h1>Contacts</h1><p class="empty">Loading…</p></div>';
+  v.innerHTML = '<div class="wrap"><h1>Contacts</h1><p class="empty loading" role="status">Loading…</p></div>';
   try {
     const l = await ctLoad(true); if (!location.hash.startsWith('#/contacts')) return;
     v.innerHTML = `<div class="wrap"><div class="ptop"><h1>Contacts</h1><span class="pspace grow"></span><button class="btn ghost" id="ctmore" aria-label="More">${icon('more')}</button><button class="btn" id="ctnew">${icon('plus')}New</button></div>