M8: add operational authentication mode

frontend/src/api/types.ts

@@ -6,6 +6,13 @@ export interface CurrentUser {
   role: Role;
 }
 
+export interface SystemStatus {
+  service: string;
+  environment: string;
+  demo_mode: boolean;
+  knowledge_provider: string;
+}
+
 export interface Vehicle {
   public_ref: string;
   make: string;