Update React Editor integration and clean up template

lib/page-metadata.ts

@@ -1,7 +1,6 @@
 import type { Metadata } from 'next';
 import { site } from '@/config/site';
 
-/** The subset of root props (see config/root.tsx) that describes a page. */
 interface EditorPage {
   root?: {
     props?: {
@@ -16,25 +15,16 @@ interface MetadataOverrides {
   title?: string;
   description?: string;
   image?: string;
-  /** Root-relative path, used for the canonical and og:url. */
   path?: string;
 }
 
-/**
- * Turns a page.json's root props into Next metadata. The editor exposes
- * title/description/ogImage on the root, so editing a page in the editor is
- * what changes its tags; `overrides` lets dynamic routes layer fetched product,
- * collection or policy data on top.
- */
 export function pageMetadata(
   page: EditorPage,
   overrides: MetadataOverrides = {}
 ): Metadata {
   const props = page.root?.props ?? {};
 
-  // Editor-authored titles already carry the brand ("About — Shop"), so they
-  // opt out of the root template with `absolute`. A fetched override is a bare
-  // product or collection name and flows through the template instead.
+  // Editor titles already include the brand; fetched titles use the template.
   const title = overrides.title ?? props.title ?? site.storeName;
   const socialTitle = overrides.title ? `${title} — ${site.storeName}` : title;
   const description =