fix(docs): normalize llms output and whmcs references

Align sidebar route keys and llms generation to documented VuePress routes only, sanitize HTML-decorated titles for plain-text compatibility, and remove the obsolete WHMCS draft page while pointing to the canonical docs URL.

Made-with: Cursor

Author: yel-hadd

docs/.vuepress/config-client/sidebar.ts

@@ -152,7 +152,7 @@ export default {
             }
         ],
 
-        '/imunify_patch': [
+        '/imunify_patch/': [
             {
                 collapsable: false,
                 children: [

docs/whmcs_plugin/README.md

@@ -1,3 +1,3 @@
 # WHMCS Plugin
 
-WHMCS Plugin description can be found in [CLN Documentation](https://docs.cln.cloudlinux.com/whmcs_plugin/).
+WHMCS Plugin description can be found in [CLN Documentation](https://docs.cloudlinux.com/cln/whmcs_plugin/).