feat: add GitHub repository synchronization functionality with document extraction pipeline and update security policy to permit GitHub API access.

src/pages/Admin/index.jsx

@@ -35,7 +35,7 @@ const Admin = () => {
     }
   }, [activeTab]);
 
-  const saveSettings = (e) => {
+  const saveSettings = async (e) => {
     e.preventDefault();
     storage.set('admin:model', model.trim());
     storage.set('admin:use_simulation', useSimulation);