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/representation.md

@@ -380,7 +380,7 @@ Get yearly earnings dashboard for a representation.
 
 #### Request Body
 ```json
-{ "mobile": "0935...", "name": "دکتر ...", "gender": "man", "degree": "...", "medical_system_code": "...", "specialties": [1,2] }
+{ "mobile": "0935...", "name": "...", "gender": "man", "degree": "...", "medical_system_code": "...", "specialties": [1,2] }
 ```
 | Field | Type | Required |
 |-------|------|----------|
@@ -452,7 +452,7 @@ Get yearly earnings dashboard for a representation.
       "patient_name": "...",
       "patient_mobile": "0912...",
       "doctor_uuid": "...",
-      "doctor_name": "دکتر ...",
+      "doctor_name": "...",
       "slot_start": 1718000000,
       "slot_end": 1718001800,
       "appointment_date": "2025-06-15",
@@ -491,7 +491,7 @@ Get yearly earnings dashboard for a representation.
   "success": true,
   "data": [
     {
-      "uuid": "...", "id": 12, "name": "دکتر ...", "gender": "man", "degree": "...",
+      "uuid": "...", "id": 12, "name": "...", "gender": "man", "degree": "...",
       "medical_code": "...", "mobile": "0912...", "email": null,
       "is_active": true, "rate": 3.5, "specialties": [],
       "profile_image": null, "created_at": "2026-06-18T..."
@@ -621,7 +621,7 @@ Get yearly earnings dashboard for a representation.
   "success": true,
   "data": [
     {
-      "uuid": "...", "name": "دکتر ...",
+      "uuid": "...", "name": "...",
       "appointments": { "today": 0, "week": 1, "month": 4, "total": 18 },
       "representation_income_rials": 363636,
       "subscription_status": "active"
@@ -642,7 +642,7 @@ Get yearly earnings dashboard for a representation.
   "success": true,
   "data": [
     {
-      "uuid": "...", "appointment_uuid": "...", "doctor_name": "دکتر ...",
+      "uuid": "...", "appointment_uuid": "...", "doctor_name": "...",
       "gross_rials": 2000000, "tax_rials": 45455, "sms_fee_rials": 1500000,
       "commission_percent": 20, "representation_share_rials": 90909,
       "created_at": "2026-06-24T..."