feat: Adsterra integration, code splitting, cleanup, Onidel affiliate

SEO_IMPROVEMENT_PLAN.md

@@ -19,12 +19,10 @@
 
 ### 1. **Add Missing Tools to Sitemap**
 
-**Current Issue:** Sitemap is missing several tools:
-- ❌ Markdown Editor
-- ❌ JSON Tool
-- ❌ CSV/JSON Converter
-- ❌ Serialize Tool
-- ❌ Release Notes page
+**Current Issue:** Sitemap was missing the Markdown Editor and Release Notes pages.
+
+> **Note:** `/json`, `/csv-json`, and `/serialize` routes were planned but never implemented.
+> These tools are now consolidated into the Object Editor (`/object-editor`).
 
 **Action:** Update `public/sitemap.xml`
 
@@ -36,24 +34,6 @@
   <changefreq>monthly</changefreq>
   <priority>0.9</priority>
 </url>
-<url>
-  <loc>https://dewe.dev/json</loc>
-  <lastmod>2025-10-22</lastmod>
-  <changefreq>monthly</changefreq>
-  <priority>0.8</priority>
-</url>
-<url>
-  <loc>https://dewe.dev/csv-json</loc>
-  <lastmod>2025-10-22</lastmod>
-  <changefreq>monthly</changefreq>
-  <priority>0.8</priority>
-</url>
-<url>
-  <loc>https://dewe.dev/serialize</loc>
-  <lastmod>2025-10-22</lastmod>
-  <changefreq>monthly</changefreq>
-  <priority>0.8</priority>
-</url>
 <url>
   <loc>https://dewe.dev/release-notes</loc>
   <lastmod>2025-10-22</lastmod>
@@ -296,8 +276,8 @@ Write and preview markdown with live rendering
 
 **Add to `index.html`:**
 ```html
-<link rel="preconnect" href="https://pagead2.googlesyndication.com">
-<link rel="dns-prefetch" href="https://pagead2.googlesyndication.com">
+<link rel="preconnect" href="https://bustleplaguereed.com">
+<link rel="dns-prefetch" href="https://bustleplaguereed.com">
 ```
 
 ---