Fix translation fallbacks, start menu lifecycle, add user last name, and verifier certificate print

tests/run_tests.js

@@ -90,6 +90,16 @@ async function runAllTests() {
     assert(res.includes('NexaCore'));
   });
 
+  await test('Default embedded English catalog contains all cert.* keys without missing labels', async () => {
+    const rawI18n = new I18nService({ defaultLocale: 'en' });
+    const certTitle = rawI18n.t('cert.title');
+    const compTitle = rawI18n.t('cert.competencyTitle');
+    const env = rawI18n.t('cert.environment');
+    assert(!certTitle.startsWith('[missing:'));
+    assert(!compTitle.startsWith('[missing:'));
+    assert(!env.startsWith('[missing:'));
+  });
+
   console.log('\n--- 2. Corporate Branding Tests ---');
   const customConfig = {
     organization: {
@@ -117,25 +127,26 @@ async function runAllTests() {
   });
 
   console.log('\n--- 3. Personalization & Safe Template Interpolation Tests ---');
-  await test('ActionDispatcher resolves {{learner.firstName}} and {{learner.name}}', async () => {
+  await test('ActionDispatcher resolves {{learner.firstName}}, {{learner.lastName}}, and {{learner.name}}', async () => {
     const mockScenario = {
-      learner: { firstName: 'Alex', name: 'Alex Rivera', role: 'Specialist' },
+      learner: { firstName: 'Chris', lastName: 'Morgan', name: 'Chris Morgan', role: 'Specialist' },
       organizations: [{ name: 'NexaCore' }]
     };
     const dispatcher = new ActionDispatcher({ scenario: mockScenario });
     const ctx = dispatcher._buildInterpolationContext();
-    assert.equal(ctx['learner.firstName'], 'Alex');
-    assert.equal(ctx['learner.name'], 'Alex Rivera');
+    assert.equal(ctx['learner.firstName'], 'Chris');
+    assert.equal(ctx['learner.lastName'], 'Morgan');
+    assert.equal(ctx['learner.name'], 'Chris Morgan');
 
-    const tmpl = 'Hello {{learner.firstName}}, your full name is {{learner.name}}.';
+    const tmpl = 'Hello {{learner.firstName}} {{learner.lastName}}, full: {{learner.name}}.';
     const interpolated = dispatcher.interpolate(tmpl, ctx);
-    assert.equal(interpolated, 'Hello Alex, your full name is Alex Rivera.');
+    assert.equal(interpolated, 'Hello Chris Morgan, full: Chris Morgan.');
   });
 
-  await test('Malicious HTML entered as first name is escaped harmlessly', async () => {
+  await test('Malicious HTML entered as first/last name is escaped harmlessly', async () => {
     const xssPayload = '<script>alert("pwned")</script><img src=x onerror=alert(1)>';
     const mockScenario = {
-      learner: { firstName: xssPayload, name: xssPayload },
+      learner: { firstName: xssPayload, lastName: xssPayload, name: xssPayload },
       organizations: [{ name: 'NexaCore' }]
     };
     const dispatcher = new ActionDispatcher({ scenario: mockScenario });