Add Q&A answered email template to admin Email Templates panel; v1.0.11

- content.ts: add qaAnsweredEmailSubject/Body/CtaLabel/Signoff fields + defaults
- email.js: buildQuestionAnsweredEmailTemplate reads from cachedSiteContent
- AdminPage.tsx: add EmailTemplateCard entry for Q&A answered notification

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/AdminPage.tsx

@@ -482,6 +482,12 @@ function EmailTemplatesPanel({
         fieldKeys={['twoFaOtpEmailSubject','twoFaOtpEmailBody','twoFaOtpEmailExpiry']}
         openKey="2fa-otp" />
 
+      <EmailTemplateCard type="transactional" icon="💬" title="Q&amp;A — Question Answered Notification"
+        trigger={'An admin approves a Q&A question submitted with "Email me when answered" checked'}
+        autoVars={'Submitter\'s first name, their original question text, the answer (truncated to 600 chars), a direct link to the answer'}
+        fieldKeys={['qaAnsweredEmailSubject','qaAnsweredEmailBody','qaAnsweredEmailCtaLabel','qaAnsweredEmailSignoff']}
+        openKey="qa-answered" />
+
       {renderSaveStatus()}
     </section>
   )
@@ -990,6 +996,10 @@ const FIELDS: Array<{ key: StringField; label: string; multiline?: boolean; sect
   { key: 'twoFaOtpEmailSubject', label: 'Subject Line', section: 'email-templates' },
   { key: 'twoFaOtpEmailBody', label: 'Body Text (shown above the code)', multiline: true, section: 'email-templates' },
   { key: 'twoFaOtpEmailExpiry', label: 'Expiry / Security Note (shown below the code)', multiline: true, section: 'email-templates' },
+  { key: 'qaAnsweredEmailSubject', label: 'Subject Line', section: 'email-templates' },
+  { key: 'qaAnsweredEmailBody', label: 'Body Text (paragraph shown below the greeting)', multiline: true, section: 'email-templates' },
+  { key: 'qaAnsweredEmailCtaLabel', label: 'Button Label', section: 'email-templates' },
+  { key: 'qaAnsweredEmailSignoff', label: 'Signoff', multiline: true, section: 'email-templates' },
 ]
 
 function normalizeStudies(siteContent: SiteContent): StudyProgram[] {