MVP ready to test

src/hooks/useCsrf.ts

@@ -29,9 +29,9 @@ export function useCsrf() {
    * Helper function to add CSRF token to fetch headers
    */
   const getHeaders = (additionalHeaders: HeadersInit = {}) => {
-    const headers: HeadersInit = {
+    const headers: Record<string, string> = {
       'Content-Type': 'application/json',
-      ...additionalHeaders,
+      ...(additionalHeaders as Record<string, string>),
     };
 
     if (csrfToken) {