feat(clinic): implement doctor detachment functionality with API endpoint and confirmation dialog

docs/api/clinic.md

@@ -303,6 +303,31 @@ Get doctors associated with a clinic.
 
 ---
 
+## DELETE `/api/v1/admin/clinic/{clinicUuid}/doctor/{doctorUuid}`
+
+Detach a doctor from a clinic. This removes the clinic↔doctor link only (the `clinic_doctors` association); it does **not** delete the doctor or change the doctor's own `active` appointment flag.
+
+**Permission:** `ROLE_ADMIN`
+
+### Path Parameters
+| Param | Type | Description |
+|-------|------|-------------|
+| `clinicUuid` | string (UUID) | Clinic UUID |
+| `doctorUuid` | string (UUID) | Doctor UUID |
+
+### Response `200`
+```json
+{ "success": true, "data": { "message": "پزشک از کلینیک جدا شد" } }
+```
+
+### Errors
+| Code | HTTP | Description |
+|------|------|-------------|
+| `ERR_VALIDATION_002` | 404 | Clinic not found |
+| `ERR_NOT_FOUND_001` | 404 | Doctor not found, or doctor not linked to this clinic |
+
+---
+
 ## POST `/file/upload/clinic_pro/clinic/field_clinic_logo`
 
 Upload clinic logo.