refactor: remove getUserRoles from LogtoManagementClient — roles come from JWT

src/main/java/net/siegeln/cameleer/saas/identity/LogtoManagementClient.java

@@ -75,29 +75,6 @@ public class LogtoManagementClient {
                 .toBodilessEntity();
     }
 
-    public List<String> getUserRoles(String userId) {
-        if (!isAvailable()) return List.of();
-
-        try {
-            var response = restClient.get()
-                    .uri(config.getLogtoEndpoint() + "/api/users/" + userId + "/roles")
-                    .header("Authorization", "Bearer " + getAccessToken())
-                    .retrieve()
-                    .body(JsonNode.class);
-
-            List<String> roles = new ArrayList<>();
-            if (response != null && response.isArray()) {
-                for (var node : response) {
-                    roles.add(node.get("name").asText());
-                }
-            }
-            return roles;
-        } catch (Exception e) {
-            log.warn("Failed to get user roles for {}: {}", userId, e.getMessage());
-            return List.of();
-        }
-    }
-
     public List<Map<String, String>> getUserOrganizations(String userId) {
         if (!isAvailable()) return List.of();