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>

mail.js

@@ -49,7 +49,7 @@ const fail = (status, message) => Object.assign(new Error(message), { status });
 const accFile = () => path.join(users.dir(), 'mail-accounts.json');
 const legacyFile = () => path.join(users.dir(), 'mail.json'); // one Outlook.com account, from before there were several
 const accounts = () => {
-  try { return (vault.unseal(JSON.parse(fs.readFileSync(accFile(), 'utf8')).data) || {}).accounts || []; } catch {}
+  try { return (vault.unseal(JSON.parse(fs.readFileSync(accFile(), 'utf8')).data) || {}).accounts || []; } catch (e) { if (e.code !== 'ENOENT') console.warn('[mail] could not read the saved mail accounts (they will look empty until this is fixed):', e.message); }
   try { // migrate the old single-account file
     const old = vault.unseal(JSON.parse(fs.readFileSync(legacyFile(), 'utf8')).data);
     if (old) { const list = [{ id: crypto.randomBytes(3).toString('hex'), type: 'outlook', ...old }]; saveAccounts(list); fs.rmSync(legacyFile(), { force: true }); return list; }