feat(tour): add onboarding tours for various admin pages

- Integrated TourButton component into SettingsMenuPage, SkillsPage, SmsWalletPage, StaffPage, StaffSessionDetailPage, StaffTreatmentSessionsPage, SubscriptionPage, TagsSettingsPage, TreatmentCasesPage to enhance user onboarding experience.
- Created new tour definitions for appointments, clinics, staff management, financial management, and patient management, ensuring comprehensive guidance for users navigating the admin panel.
- Updated documentation to reflect the addition of tours and their implementation details.

assets/admin/pages/DoctorsPage.tsx

@@ -16,6 +16,7 @@ import ChangeLoginMobileModal from '../components/ChangeLoginMobileModal';
 import Pagination from '../components/ui/Pagination';
 import SearchableSelect from '../components/ui/SearchableSelect';
 import { useAuthStore } from '../stores/authStore';
+import TourButton from '../components/ui/TourButton';
 
 // ── Types ─────────────────────────────────────────────────────────────────
 
@@ -239,7 +240,7 @@ export default function DoctorsPage() {
       {/* Header */}
       <div className="card-title-row" style={{ marginBottom: 'var(--gap)' }}>
         <div>
-          <h1 className="section-title">پزشکان</h1>
+          <div style={{ display: 'flex', alignItems: 'center', gap: 4 }} data-tour="page-title"><h1 className="section-title">پزشکان</h1><TourButton tourId="doctors" ready /></div>
           <div className="muted" style={{ fontSize: 13, marginTop: 3 }}>مدیریت پزشکان، تخصص‌ها و وضعیت همکاری</div>
         </div>
         <div style={{ display: 'flex', gap: 10 }}>