fix(email-renderer): preserve section ancestry in parsed HTML

packages/email-renderer/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@wrnexus/email-renderer",
-  "version": "0.1.7",
+  "version": "0.1.8",
   "type": "module",
   "description": "WRNexus block email renderers with HTML, text, AMP Email, and MJML interoperability.",
   "exports": {
@@ -21,6 +21,7 @@
     "mjml-parser-xml": "5.4.0"
   },
   "devDependencies": {
+    "parse5": "7.3.0",
     "@types/bun": "^1.4.0",
     "typescript": "^6.0.3"
   }