fix(publisher): footer credit links to the editor Space

The footer credit used to point at the legacy Astro-only static
template (tfrere/research-article-template). The editor is now
the canonical entry point - it bundles the static renderer and is
what people fork to start a new article. Update the credit link
accordingly so readers landing on a published article find the
right starting point.

Snapshot refreshed.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/src/publisher/html-renderer.ts

@@ -1022,10 +1022,13 @@ function renderFooter(meta: PublishMeta): string {
   sections += `
     <section class="references-block"></section>`;
 
-  // Template credit
+  // Template credit. Point at the editor Space (which IS the
+  // template you fork to start a new article) instead of the legacy
+  // Astro-only static template - the editor is now the canonical
+  // entry point and bundles the static renderer.
   sections += `
     <div class="template-credit">
-      <p>Made with &#10084;&#65039; with <a href="https://huggingface.co/spaces/tfrere/research-article-template" target="_blank" rel="noopener noreferrer">research article template</a></p>
+      <p>Made with &#10084;&#65039; with <a href="https://huggingface.co/spaces/tfrere/research-article-template-editor" target="_blank" rel="noopener noreferrer">research article template editor</a></p>
     </div>`;
 
   return `<footer class="footer"><div class="footer-inner">${sections}</div></footer>`;

backend/tests/__snapshots__/html-renderer-snapshot.test.ts.snap

@@ -214,7 +214,7 @@ exports[`snapshot - full render > matches snapshot for a typical article 1`] = `
     </section>
     <section class="references-block"></section>
     <div class="template-credit">
-      <p>Made with &#10084;&#65039; with <a href="https://huggingface.co/spaces/tfrere/research-article-template" target="_blank" rel="noopener noreferrer">research article template</a></p>
+      <p>Made with &#10084;&#65039; with <a href="https://huggingface.co/spaces/tfrere/research-article-template-editor" target="_blank" rel="noopener noreferrer">research article template editor</a></p>
     </div></div></footer>
 
   <!-- Image lightbox -->