fix: grant radius user access to database objects

init/init.sql

@@ -234,4 +234,15 @@ FROM radacct ra
 LEFT JOIN node_assignments na
     ON na.username = ra.username
 
-WHERE ra.acctstoptime IS NULL;
+WHERE ra.acctstoptime IS NULL;
+
+-- Permissions for the radius application user
+GRANT USAGE ON SCHEMA public TO radius;
+
+GRANT ALL PRIVILEGES
+ON ALL TABLES IN SCHEMA public
+TO radius;
+
+GRANT ALL PRIVILEGES
+ON ALL SEQUENCES IN SCHEMA public
+TO radius;