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/TreatmentCasesPage.tsx

@@ -58,9 +58,9 @@ export default function TreatmentCasesPage() {
 
     return (
         <>
-            <PageHeader title="دوره‌های درمان" />
+            <PageHeader title="دوره‌های درمان" tourId="treatment-cases" />
 
-            <div className="tabs" style={{ marginBottom: 16 }}>
+            <div className="tabs" data-tour="treatment-tabs" style={{ marginBottom: 16 }}>
                 {TABS.map((t) => (
                     <button
                         key={t.id}