feat: rename project from DocuNova to DocuElevate, update related documentation and templates

frontend/templates/license.html

@@ -1,6 +1,6 @@
 {% extends "base.html" %}
 
-{% block title %}DocuNova - License{% endblock %}
+{% block title %}DocuElevate - License{% endblock %}
 
 {% block content %}
 <div class="container mx-auto px-4 py-8">
@@ -14,7 +14,7 @@
         </div>
         
         <p class="mt-4 text-gray-600">
-            DocuNova is distributed under the Apache License 2.0, which is a permissive
+            DocuElevate is distributed under the Apache License 2.0, which is a permissive
             open-source software license that allows you to use, modify, distribute, and
             contribute to the project.
         </p>