Refactor doctor name handling across the application

- Removed the "دکتر" prefix from doctor names in various components and API responses to ensure consistency and clarity.
- Updated the AppointmentDetailPage, CommentsPage, DashboardPage, RatingsPage, SecretariesPage, and other relevant files to reflect the changes in doctor name formatting.
- Adjusted API documentation to align with the new naming conventions.
- Implemented validation to prevent the creation of clinics without a name and restricted users to a single clinic.
- Added tests to verify that doctor names are stored without titles and that clinic creation adheres to the new validation rules.

docs/api/sms.md

@@ -62,7 +62,7 @@ Send an SMS using an approved template.
   "mobile": "09123456789",
   "template_uuid": "tmpl-uuid-...",
   "vars": {
-    "name": "دکتر علی احمدی",
+    "name": "علی احمدی",
     "date": "۱۵ خرداد ۱۴۰۴"
   },
   "provider": "kavenegar"