feat: port secretaries tab from tauri to admin my-secretaries page

- Redesign MySecretariesPage pixel-perfect to clinic-pro-tauri (active/previous
  tabs, desktop table, mobile cards, add/edit/view modal with permission
  accordions, deactivate confirm)
- Permission sections based on existing admin pages (appointments, patients,
  payments, insurances, addresses, clinic_info)
- Extend DoctorSecretary with national_code + address columns (+migration);
  wire create/update in SecretaryController; add patients/payments to
  DEFAULT_PERMISSIONS
- Extend Secretary/SecretaryPermissions types; update admin SecretariesPage
- Backend + frontend tests; update docs/api/secretary.md

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

assets/admin/pages/SecretariesPage.tsx

@@ -14,9 +14,11 @@ import Modal from '../components/ui/Modal';
 
 const DEFAULT_PERMISSIONS: SecretaryPermissions = {
   appointments: { view: true, create: false, cancel: false, update_status: false },
+  patients: { view: true, create: false, update: false, delete: false },
+  payments: { view: true, create: false, update: false, delete: false },
+  insurances: { view: true, create: false, update: false, delete: false },
   addresses: { view: true, create: false, update: false, delete: false },
   clinic_info: { view: true, update: false },
-  insurances: { view: true, create: false, update: false, delete: false },
 };
 
 type PermSection = keyof SecretaryPermissions;
@@ -31,6 +33,24 @@ const PERMISSION_LABELS: Record<PermSection, { label: string; actions: { key: st
       { key: 'update_status', label: 'تغییر وضعیت' },
     ],
   },
+  patients: {
+    label: 'پرونده بیماران',
+    actions: [
+      { key: 'view', label: 'مشاهده' },
+      { key: 'create', label: 'ایجاد' },
+      { key: 'update', label: 'ویرایش' },
+      { key: 'delete', label: 'حذف' },
+    ],
+  },
+  payments: {
+    label: 'پرداخت‌ها',
+    actions: [
+      { key: 'view', label: 'مشاهده' },
+      { key: 'create', label: 'ایجاد' },
+      { key: 'update', label: 'ویرایش' },
+      { key: 'delete', label: 'حذف' },
+    ],
+  },
   addresses: {
     label: 'آدرس‌ها',
     actions: [