Update WeChat draft follow template

wechat-draft-article-layout.mjs

@@ -14,6 +14,13 @@ import { WECHAT_DRAFT_PUBLICATION_STANDARD } from './wechat-draft-publication-st
 
 const WECHAT_DRAFT_CONTENT_CHAR_LIMIT =
   WECHAT_DRAFT_PUBLICATION_STANDARD.limits.maxContentChars;
+const FOLLOW_QRCODE_SIZE_PX = 120;
+const MP_FOLLOW_QRCODE_PUBLIC_PATH = '/assets/mp-follow-qrcode.png';
+
+export function resolveMpFollowQrcodePublicUrl(env = process.env) {
+  const base = String(env.H5_PUBLIC_BASE_URL ?? 'https://m.tkmind.cn').replace(/\/$/, '');
+  return `${base}${MP_FOLLOW_QRCODE_PUBLIC_PATH}`;
+}
 
 export function clipWechatDraftBodyToFitFooter(
   body,
@@ -35,9 +42,16 @@ export function clipWechatDraftBodyToFitFooter(
 export function renderReadOriginalLink(publicUrl) {
   if (!publicUrl) return '';
   return [
-    '<p style="margin:18px 0 10px;text-align:center;line-height:1.6;">',
-    `<a href="${publicUrl}" style="display:inline-block;padding:5px 14px;border:1px solid #e2e8f0;border-radius:999px;color:#576b95;font-size:12px;text-decoration:none;background:#fafafa;">📖 阅读原文</a>`,
+    '<section style="text-align:center;margin:26px 0 14px;padding:20px 16px 18px;background:linear-gradient(180deg,#eef4ff 0%,#fff 100%);border:2px dashed #576b95;border-radius:16px;box-shadow:0 6px 18px rgba(87,107,149,.12);">',
+    '<p style="margin:0;font-size:14px;color:#4a5568;line-height:1.6;font-weight:600;">✨ 完整网页版更精彩</p>',
+    '<p style="margin:6px 0 0;font-size:12px;color:#718096;line-height:1.5;">动画 · 互动 · 高清大图 · 完整内容</p>',
+    '<p style="margin:14px 0 0;font-size:26px;line-height:1;color:#576b95;letter-spacing:6px;font-weight:700;">⬇ ⬇ ⬇</p>',
+    '<p style="margin:12px 0 0;">',
+    `<a href="${publicUrl}" style="display:inline-block;padding:12px 32px;border-radius:999px;background:linear-gradient(135deg,#576b95,#3d5a80);color:#fff;font-size:16px;font-weight:700;text-decoration:none;box-shadow:0 6px 16px rgba(87,107,149,.35);">📖 阅读原文</a>`,
     '</p>',
+    '<p style="margin:12px 0 0;font-size:13px;color:#576b95;font-weight:700;line-height:1.5;">👆 点击上方按钮，查看完整精彩页面</p>',
+    '<p style="margin:8px 0 0;font-size:22px;line-height:1;color:#576b95;letter-spacing:4px;">➡️ ➡️ ➡️</p>',
+    '</section>',
   ].join('');
 }
 
@@ -48,7 +62,7 @@ export function renderFollowTkMindSection({
   qrcodeImageUrl = '',
 } = {}) {
   const qrcodeBlock = qrcodeImageUrl
-    ? `<img src="${qrcodeImageUrl}" alt="TKMind 服务号二维码" style="width:168px;height:168px;display:block;margin:14px auto 0;border-radius:10px;border:1px solid #eee;" />`
+    ? `<img src="${qrcodeImageUrl}" alt="TKMind 服务号二维码" style="width:${FOLLOW_QRCODE_SIZE_PX}px;height:${FOLLOW_QRCODE_SIZE_PX}px;display:block;margin:12px auto 0;border-radius:10px;border:1px solid #eee;" />`
     : '';
   return [
     '<section style="text-align:center;padding:22px 16px 18px;margin:18px 0 8px;background:linear-gradient(180deg,#fff8f8,#fff);border:1px solid #ffcdd2;border-radius:12px;">',
@@ -84,23 +98,41 @@ export function resolveTkMindBrandIconPath(memindLibRoot = process.cwd()) {
   return candidates.find((candidate) => fs.existsSync(candidate)) ?? null;
 }
 
+export function resolveMpFollowQrcodeAssetPath(memindLibRoot = process.cwd()) {
+  const fromHelper = resolveMpFollowQrcodePath(memindLibRoot);
+  if (fromHelper) return fromHelper;
+  const publicAsset = path.join(memindLibRoot, 'public', MP_FOLLOW_QRCODE_PUBLIC_PATH.replace(/^\//, ''));
+  if (fs.existsSync(publicAsset)) return publicAsset;
+  const cwdPublicAsset = path.join(process.cwd(), 'public', MP_FOLLOW_QRCODE_PUBLIC_PATH.replace(/^\//, ''));
+  return fs.existsSync(cwdPublicAsset) ? cwdPublicAsset : null;
+}
+
 export async function uploadWechatDraftBrandAssets({
   accessToken,
   wechatFetch = undiciFetch,
   memindLibRoot = process.cwd(),
+  env = process.env,
 } = {}) {
+  const qrcodePath = resolveMpFollowQrcodeAssetPath(memindLibRoot);
+  const publicFallbackUrl = resolveMpFollowQrcodePublicUrl(env);
   let qrcodeImageUrl = '';
-  if (!accessToken) {
+
+  if (!qrcodePath) {
     return { qrcodeImageUrl };
   }
 
-  const qrcodePath = resolveMpFollowQrcodePath(memindLibRoot);
-  if (qrcodePath) {
+  if (!accessToken) {
+    return { qrcodeImageUrl: publicFallbackUrl };
+  }
+
+  try {
     qrcodeImageUrl = await uploadWechatArticleContentImage(
       accessToken,
       fs.readFileSync(qrcodePath),
       { wechatFetch, filename: 'mp-follow-qrcode.png' },
     );
+  } catch {
+    qrcodeImageUrl = publicFallbackUrl;
   }
 
   return { qrcodeImageUrl };