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/doctor-claim.md

@@ -82,7 +82,7 @@ unclaimed ──claim/transfer شروع──▶ pending_transfer ──موفق
   "data": {
     "status": "claimed",
     "claim": { "uuid": "…" },
-    "doctor": { "uuid": "…", "name": "دکتر فرخنده حسینی" }
+    "doctor": { "uuid": "…", "name": "فرخنده حسینی" }
   }
 }
 ```
@@ -127,7 +127,7 @@ unclaimed ──claim/transfer شروع──▶ pending_transfer ──موفق
     {
       "uuid": "…",
       "status": "completed",
-      "doctor": { "uuid": "…", "name": "دکتر فرخنده حسینی" },
+      "doctor": { "uuid": "…", "name": "فرخنده حسینی" },
       "mobile_masked": "0912***4567",
       "verification_method": "apiir_personinfo+shahkar",
       "failure_reason": null,