refactor: rename shopLayoutData to storefrontLayoutData

Align Alpine.js base component naming with storefront terminology.
Updated across all storefront JS, templates, and documentation.

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

app/modules/loyalty/static/storefront/js/loyalty-dashboard.js

@@ -3,7 +3,7 @@
 
 function customerLoyaltyDashboard() {
     return {
-        ...shopLayoutData(),
+        ...storefrontLayoutData(),
 
         // Data
         card: null,

app/modules/loyalty/static/storefront/js/loyalty-enroll.js

@@ -3,7 +3,7 @@
 
 function customerLoyaltyEnroll() {
     return {
-        ...shopLayoutData(),
+        ...storefrontLayoutData(),
 
         // Program info
         program: null,

app/modules/loyalty/static/storefront/js/loyalty-history.js

@@ -3,7 +3,7 @@
 
 function customerLoyaltyHistory() {
     return {
-        ...shopLayoutData(),
+        ...storefrontLayoutData(),
 
         // Data
         card: null,

app/modules/loyalty/templates/loyalty/storefront/enroll-success.html

@@ -86,7 +86,7 @@
 <script>
 function customerLoyaltyEnrollSuccess() {
     return {
-        ...shopLayoutData(),
+        ...storefrontLayoutData(),
         walletUrls: { google_wallet_url: null, apple_wallet_url: null },
         async init() {
             try {