Add notify-on-answer email and save-as-image for Q&A; v1.0.10

- Contact form: notifyOnAnswer checkbox (shown for Bible Questions only)
- Contact route: stores notifyOnAnswer flag on question record
- Email: buildQuestionAnsweredEmailTemplate for branded notification
- Questions route: sends notification email on approve when notifyOnAnswer + email + answer are set
- Q&A section: Canvas API "Save as image" button generates 1080x1080 PNG quote card

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

server/email.js

@@ -385,6 +385,53 @@ export function buildAdminReplyTemplate({ recipientName, message }) {
   `
 }
 
+export function buildQuestionAnsweredEmailTemplate({ firstName, question, answer, questionUrl }) {
+  const safeName = escapeHtml(firstName || 'friend')
+  const safeQuestion = escapeHtml(question)
+  const safeAnswer = escapeHtml(answer.length > 600 ? answer.slice(0, 597) + '…' : answer).replace(/\n/g, '<br/>')
+  const safeUrl = escapeHtml(questionUrl)
+  const text = `Hi ${firstName || 'friend'},\n\nYour question has been answered on Verse by Verse with Nate.\n\nYour question: ${question}\n\nAnswer: ${answer}\n\nRead it at: ${questionUrl}\n\nGrace and peace,\nNate`
+  const html = `
+    <div style="margin:0;padding:0;background-color:#f5f1e8;font-family:Georgia,serif;color:#201a10;">
+      <table width="100%" cellpadding="0" cellspacing="0" border="0" role="presentation" style="background-color:#f5f1e8;">
+        <tr>
+          <td align="center" style="padding:28px 16px;">
+            <table width="100%" cellpadding="0" cellspacing="0" border="0" role="presentation" style="max-width:680px;background:#ffffff;border:1px solid #e1d3b2;border-radius:14px;overflow:hidden;">
+              <tr>
+                <td style="background:#111111;padding:20px 24px;border-bottom:3px solid #c8860a;">
+                  <div style="font-family:Arial,sans-serif;font-size:12px;letter-spacing:0.32em;text-transform:uppercase;color:#c8860a;">Verse by Verse with Nate</div>
+                  <h1 style="margin:10px 0 0;color:#f4ead5;font-size:26px;line-height:1.2;">Your Question Was Answered</h1>
+                </td>
+              </tr>
+              <tr>
+                <td style="padding:26px 24px 18px;">
+                  <p style="margin:0 0 16px;font-family:Arial,sans-serif;font-size:16px;line-height:1.6;color:#201a10;">Hi ${safeName},</p>
+                  <p style="margin:0 0 16px;font-family:Arial,sans-serif;font-size:15px;line-height:1.7;color:#201a10;">Nate has answered your question on Verse by Verse with Nate.</p>
+                  <div style="background:#f7f2e5;border-left:3px solid #c8860a;padding:14px 18px;margin:0 0 20px;border-radius:0 8px 8px 0;">
+                    <p style="margin:0 0 6px;font-family:Arial,sans-serif;font-size:13px;letter-spacing:0.06em;text-transform:uppercase;color:#a07830;">Your question</p>
+                    <p style="margin:0;font-family:Georgia,serif;font-size:15px;line-height:1.6;color:#201a10;font-style:italic;">${safeQuestion}</p>
+                  </div>
+                  <div style="margin:0 0 24px;">
+                    <p style="margin:0 0 6px;font-family:Arial,sans-serif;font-size:13px;letter-spacing:0.06em;text-transform:uppercase;color:#a07830;">Answer</p>
+                    <p style="margin:0;font-family:Arial,sans-serif;font-size:15px;line-height:1.7;color:#201a10;">${safeAnswer}</p>
+                  </div>
+                  <a href="${safeUrl}" style="display:inline-block;background:#c8860a;color:#ffffff;font-family:Arial,sans-serif;font-size:14px;font-weight:bold;text-decoration:none;padding:12px 24px;border-radius:6px;">Read Full Answer →</a>
+                </td>
+              </tr>
+              <tr>
+                <td style="background:#f7f2e5;border-top:1px solid #e8dcc1;padding:14px 24px;">
+                  <p style="margin:0;font-family:Arial,sans-serif;font-size:12px;line-height:1.5;color:#735a2b;">You received this because you requested a notification when this question was answered.</p>
+                </td>
+              </tr>
+            </table>
+          </td>
+        </tr>
+      </table>
+    </div>
+  `
+  return { subject: 'Your question has been answered — Verse by Verse with Nate', text, html }
+}
+
 // ── Transactional email senders ────────────────────────────────────────────
 
 export async function sendStudyWelcomeEmail(email, displayName) {

server/routes/contact.js

@@ -102,7 +102,7 @@ function contactRateLimit(req, res, next) {
 export function register(app) {
   app.post('/api/contact', contactRateLimit, async (req, res) => {
     try {
-      const { firstName, lastName, email, message, messageType, subscribe, _honey } = req.body ?? {}
+      const { firstName, lastName, email, message, messageType, subscribe, notifyOnAnswer, _honey } = req.body ?? {}
 
       if (_honey) { res.json({ ok: true }); return }
 
@@ -164,6 +164,7 @@ export function register(app) {
           answeredAt: null,
           isApproved: false,
           approvedAt: null,
+          notifyOnAnswer: notifyOnAnswer === true,
         }
         state.questions.unshift(question)
         state.questions = state.questions.slice(0, MAX_QUESTIONS)

server/routes/questions.js

@@ -3,6 +3,9 @@ import { requireAdminAuth } from '../auth.js'
 import { MAX_QUESTIONS } from '../config.js'
 import { state } from '../state.js'
 import { queueQuestionsWrite, queueDraftQuestionsWrite } from '../data.js'
+import { buildQuestionAnsweredEmailTemplate, getResendFromAddress, getResendReplyToAddress, sendResendEmailWithRetry, getCanonicalBaseUrl } from '../email.js'
+import { buildAbsoluteUrl } from '../helpers.js'
+import { Resend } from 'resend'
 
 function ensureDraftQuestions() {
   if (state.draftQuestions !== null) return
@@ -103,6 +106,29 @@ export function register(app) {
     question.approvedAt = approved === true ? new Date().toISOString() : null
     queueDraftQuestionsWrite()
 
+    if (approved === true && question.notifyOnAnswer && question.email && question.answer) {
+      try {
+        const resend = new Resend(process.env.RESEND_API_KEY)
+        const from = getResendFromAddress()
+        const replyTo = getResendReplyToAddress()
+        const baseUrl = getCanonicalBaseUrl()
+        const questionUrl = buildAbsoluteUrl(baseUrl, `/questions#qa-${question.id}`)
+        const template = buildQuestionAnsweredEmailTemplate({
+          firstName: question.firstName,
+          question: question.question,
+          answer: question.answer,
+          questionUrl,
+        })
+        await sendResendEmailWithRetry({
+          resend,
+          payload: { from, replyTo, to: question.email, subject: template.subject, text: template.text, html: template.html },
+          context: `notify-on-answer:${question.id}`,
+        })
+      } catch (err) {
+        console.error('[notify-on-answer] Failed to send notification email:', err?.message ?? err)
+      }
+    }
+
     res.json({ ok: true, question })
   })