feat(patients): standalone new-session page with sectioned UX

Dedicated route /admin/my-patients/:recordUuid/session/new replacing the
modal: insurance & price section (auto-fill from pricing), services,
payment/notes, sticky live summary. New-visit buttons navigate to it.

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

assets/admin/App.tsx

@@ -30,6 +30,7 @@ import MyClinicPage from './pages/MyClinicPage';
 import SettingsPage from './pages/SettingsPage';
 import DoctorProfilePage from './pages/DoctorProfilePage';
 import MyPatientsPage from './pages/MyPatientsPage';
+import NewSessionPage from './pages/NewSessionPage';
 import InsurancePricingPage from './pages/InsurancePricingPage';
 import ClaimsPage from './pages/ClaimsPage';
 import MyFinancialPage from './pages/MyFinancialPage';
@@ -170,6 +171,7 @@ export default function App() {
 
         {/* دکتر / منشی / کلینیک */}
         <Route path="my-patients" element={<RoleRoute roles={['doctor', 'secretary', 'clinic']} blockClinicScope><MyPatientsPage /></RoleRoute>} />
+        <Route path="my-patients/:recordUuid/session/new" element={<RoleRoute roles={['doctor', 'secretary', 'clinic']} blockClinicScope><NewSessionPage /></RoleRoute>} />
         <Route path="insurance-pricing" element={<RoleRoute roles={['doctor', 'clinic']} blockClinicScope><InsurancePricingPage /></RoleRoute>} />
         <Route path="claims" element={<RoleRoute roles={['doctor', 'clinic']} blockClinicScope><ClaimsPage /></RoleRoute>} />
         <Route path="my-financial" element={<RoleRoute roles={['doctor', 'secretary', 'clinic']}><MyFinancialPage /></RoleRoute>} />