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/notes-view.js

@@ -17,7 +17,7 @@ async function ntLoad() { const r = await ntApi('/'); nt.notes = r.notes; nt.peo
 
 // ================================================================ the list of notes
 async function ntHome() {
-  const v = $('#view'); v.innerHTML = '<div class="wrap"><h1>Notes</h1><p class="empty">Loading…</p></div>';
+  const v = $('#view'); v.innerHTML = '<div class="wrap"><h1>Notes</h1><p class="empty loading" role="status">Loading…</p></div>';
   try { await ntLoad(); } catch (e) { v.innerHTML = `<div class="wrap"><h1>Notes</h1><p class="err">${esc(e.message)}</p></div>`; return; }
   if (!location.hash.startsWith('#/notes')) return;
   const filters = [['all', 'All'], ['list', 'Lists'], ['note', 'Notes'], ['mine', 'Mine'], ['shared', 'Shared'], ['archived', 'Archived']];
@@ -45,7 +45,7 @@ function ntNewSheet() {
 
 // ================================================================ one note or list
 async function ntEditor(id) {
-  const v = $('#view'); v.innerHTML = '<div class="wrap"><p class="empty">Loading…</p></div>';
+  const v = $('#view'); v.innerHTML = '<div class="wrap"><p class="empty loading" role="status">Loading…</p></div>';
   let n; try { await ntLoad(); n = nt.notes.find(x => x.id === id); if (!n) throw new Error('That note is not available (it may have been deleted, or is not shared with you).'); } catch (e) { v.innerHTML = `<div class="wrap"><div class="bar"><a class="btn ghost" href="#/notes">${icon('back')}Notes</a></div><p class="err">${esc(e.message)}</p></div>`; return; }
   if (!location.hash.startsWith('#/notes/')) return;
   let saveT, busy = false, dirty = false;