feat(settings): render doctor/clinic settings pages inside the settings shell

Wrap the existing settings-area pages — doctor profile (مدیریت پزشک),
insurance pricing (بیمه), payment report (پرداخت), SMS wallet (پیامک‌ها),
secretaries (منشی) and clinic info (مطب) — in SettingsLayout so they appear
under the settings sub-navigation like the Figma design, with the matching
menu item highlighted. Wire the doctor/clinic menu entries to their routes.

The نوبت‌دهی / برچسب‌ها / حساب کاربری entries stay as disabled placeholders
until they have their own pages/designs.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

assets/admin/components/layout/SettingsLayout.tsx

@@ -19,9 +19,9 @@ export type SettingsMenuItem = {
 
 export const SETTINGS_MENU: SettingsMenuItem[] = [
   { key: 'subscription', label: 'خرید اشتراک',       icon: CreditCardIcon,           to: '/admin/subscription' },
-  { key: 'doctor',       label: 'مدیریت پزشک',        icon: UserIcon },
+  { key: 'doctor',       label: 'مدیریت پزشک',        icon: UserIcon,                 to: '/admin/profile' },
   { key: 'appointment',  label: 'مدیریت نوبت دهی',    icon: CalendarDaysIcon },
-  { key: 'clinic',       label: 'مدیریت مطب',         icon: BuildingOffice2Icon },
+  { key: 'clinic',       label: 'مدیریت مطب',         icon: BuildingOffice2Icon,      to: '/admin/my-clinic' },
   { key: 'services',     label: 'خدمات',              icon: WrenchScrewdriverIcon,    to: '/admin/clinic-services' },
   { key: 'payment',      label: 'مدیریت پرداخت',      icon: BanknotesIcon,            to: '/admin/my-financial' },
   { key: 'secretary',    label: 'مدیریت منشی',        icon: UsersIcon,                to: '/admin/my-secretaries' },