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/overview/recentClientChanges.ts

@@ -1,12 +1,12 @@
 import {
+  type AuditDetails,
+  type CommonAuditLog,
   formatAuditValue,
   parseAuditDetails,
   resolveAuditActor,
-  type AuditDetails,
-  type CommonAuditLog,
 } from "../../../../common/core/audit";
-import { t } from "../../lib/i18n";
 import type { ClientSummary, DevAuditLog } from "../../lib/devApi";
+import { t } from "../../lib/i18n";
 
 export type RecentClientChange = {
   eventId: string;