feat: add RichTextEditor component for rich text editing in articles

feat: create SanitizeBlogBodiesCommand to clean existing blog bodies according to current HTML sanitization policies

test: add AppointmentTreatmentSessionLinkTest to ensure appointment booking functionality works correctly with treatment session links

assets/admin/pages/BlogFormPage.tsx

@@ -4,8 +4,7 @@ import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
 import { useForm, Controller } from 'react-hook-form';
 import { zodResolver } from '@hookform/resolvers/zod';
 import { toast } from 'sonner';
-import { CKEditor } from '@ckeditor/ckeditor5-react';
-import ClassicEditor from '@ckeditor/ckeditor5-build-classic';
+import RichTextEditor from '../components/RichTextEditor';
 import { api } from '../lib/api';
 import type { ApiResponse } from '../lib/api';
 import type { Blog, City } from '../types';
@@ -174,18 +173,7 @@ export default function BlogFormPage() {
                   control={control}
                   name="body"
                   render={({ field }) => (
-                    <div dir="rtl" className="ck-rtl">
-                      <CKEditor
-                        editor={ClassicEditor as never}
-                        data={field.value ?? ''}
-                        onChange={(_evt: unknown, editor: { getData: () => string }) => field.onChange(editor.getData())}
-                        config={{
-                          licenseKey: 'GPL',
-                          language: 'fa',
-                          toolbar: ['heading', '|', 'bold', 'italic', 'link', 'bulletedList', 'numberedList', '|', 'blockQuote', 'insertTable', '|', 'undo', 'redo'],
-                        }}
-                      />
-                    </div>
+                    <RichTextEditor value={field.value ?? ''} onChange={field.onChange} />
                   )}
                 />
                 {errors.body && <p className="text-[var(--danger)] text-xs mt-1">{errors.body.message}</p>}