Fix?

frontend/app/composables/useApi.ts

@@ -1,9 +1,13 @@
 // composables/useApi.js
 import { ref } from 'vue'
 
+function normalizeUrl(url: string): string {
+  return url.replace(/\/+$/, '')
+}
+
 export default function useApi() {
   const config = useRuntimeConfig()
-  const baseUrl = config.public.apiBaseUrl
+  const baseUrl = `${normalizeUrl(config.public.apiBaseUrl)}/api`
 
   // Generic GET request
   const get = async (endpoint) => {