Fix logout to invalidate complete Authentik session

- Change logout endpoint from proxy-only to full invalidation
- Use /flows/-/default/invalidation/ endpoint
- Add NUXT_PUBLIC_AUTHENTIK_URL to runtime config
- Logout now closes session in all applications
- Prevents automatic re-authentication after logout

nuxt4/nuxt.config.ts

@@ -11,5 +11,11 @@ export default defineNuxtConfig({
     '@nuxt/content'
   ],
 
-  css: ['~/assets/css/main.css']
+  css: ['~/assets/css/main.css'],
+
+  runtimeConfig: {
+    public: {
+      authentikUrl: process.env.NUXT_PUBLIC_AUTHENTIK_URL || 'https://authentik.nucleoriofrio.com'
+    }
+  }
 })