fix: stabilize tests and refine RBAC model for privileged roles

- Updated devfront to recognize 'rp_admin' and 'tenant_admin' as privileged developer roles.
- Added specific forbidden messages for privileged roles in devfront.
- Improved adminfront Worksmobile test reliability across browsers.
- Updated Makefile to skip userfront tests in environments without Flutter SDK.
- Applied lint and format fixes across adminfront and devfront.

devfront/src/features/clients/ClientsPage.test.tsx

@@ -1,6 +1,6 @@
-import { act } from "react-dom/test-utils";
-import { createRoot, type Root } from "react-dom/client";
 import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
+import { createRoot, type Root } from "react-dom/client";
+import { act } from "react-dom/test-utils";
 import { MemoryRouter } from "react-router-dom";
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 import ClientsPage from "./ClientsPage";

devfront/src/features/clients/components/ClientLogo.test.tsx

@@ -1,6 +1,6 @@
-import { act } from "react-dom/test-utils";
+import type { ComponentProps, ReactNode } from "react";
 import { createRoot, type Root } from "react-dom/client";
-import type { ReactNode, ComponentProps } from "react";
+import { act } from "react-dom/test-utils";
 import { afterEach, describe, expect, it, vi } from "vitest";
 import { ClientLogo } from "./ClientLogo";
 

devfront/src/features/clients/routes/ClientFederationPage.test.tsx

@@ -1,6 +1,6 @@
-import { act } from "react-dom/test-utils";
-import { createRoot, type Root } from "react-dom/client";
 import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
+import { createRoot, type Root } from "react-dom/client";
+import { act } from "react-dom/test-utils";
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 import { ClientFederationPage } from "./ClientFederationPage";