feat: add staff role functionality with dashboard access and service management

- Implemented SidebarStaff component tests to ensure staff users see only their dashboard and services.
- Created StaffMyServicesPage to display assigned services for staff users.
- Added migration to link clinic staff rows to user accounts for ROLE_STAFF access.
- Defined StaffPermissions class for static permissions related to staff role.
- Introduced StaffRouteGuardSubscriber to restrict API access for staff users.
- Developed StaffAccountService for managing staff user accounts and linking them to clinic staff.
- Added comprehensive tests for StaffAccountService to validate user creation, mobile number handling, and account attachment.
- Implemented tests for staff dashboard access to ensure proper permissions and access control.
- Created tests for staff login context to verify correct environment visibility based on user roles.

assets/admin/types/index.ts

@@ -607,9 +607,21 @@ export interface ClinicStaff {
     address: string | null;
     national_code: string | null;
     active: boolean;
+    /** حساب ورود به پنل با نقش ROLE_STAFF */
+    has_account: boolean;
+    user_uuid: string | null;
     created_at: number;
 }
 
+/** یک قلم از سرویس‌های تخصیص‌یافته به پرسنل — خروجی GET /api/v1/dashboard/staff */
+export interface StaffAssignedService {
+    uuid: string;
+    name: string;
+    section_name: string;
+    price_rials: number;
+    duration_minutes: number | null;
+}
+
 export interface SubscriptionPlan {
     uuid: string;
     name: string;