feat: add ROLE_REPRESENTATION access to admin panel for managing doctors and clinics

- Updated authStore to include 'representation' role.
- Modified DoctorFormPage and DoctorsPage to handle different endpoints based on user role.
- Created new RepresentationActionController for handling doctor and clinic creation by representatives.
- Added new API endpoints for representatives to manage doctors, clinics, and view appointments.
- Updated documentation to reflect new role and API changes.

assets/admin/App.tsx

@@ -43,7 +43,7 @@ import PwaInstallBanner from './components/ui/PwaInstallBanner';
 
 // ── Guards ──────────────────────────────────────────────────────────────────
 
-const ALLOWED_ROLES = ['admin', 'doctor', 'clinic', 'secretary'] as const;
+const ALLOWED_ROLES = ['admin', 'doctor', 'clinic', 'secretary', 'representation'] as const;
 
 function PrivateRoute({ children }: { children: React.ReactNode }) {
   const { isAuthenticated, primaryRole, availableContexts, dbUuid, fetchMe, logout } = useAuthStore();
@@ -146,7 +146,7 @@ export default function App() {
         <Route path="blogs/new" element={<RoleRoute roles={['admin']}><BlogFormPage /></RoleRoute>} />
         <Route path="blogs/:uuid/edit" element={<RoleRoute roles={['admin']}><BlogFormPage /></RoleRoute>} />
         <Route path="secretaries" element={<RoleRoute roles={['admin']}><SecretariesPage /></RoleRoute>} />
-        <Route path="clinics" element={<RoleRoute roles={['admin']}><ClinicsPage /></RoleRoute>} />
+        <Route path="clinics" element={<RoleRoute roles={['admin', 'representation']}><ClinicsPage /></RoleRoute>} />
         <Route path="settings" element={<RoleRoute roles={['admin']}><SettingsPage /></RoleRoute>} />
 
         {/* کلینیک من — fallback اگر dbUuid هنوز لود نشده */}
@@ -156,8 +156,8 @@ export default function App() {
         <Route path="clinics/:uuid" element={<RoleRoute roles={['admin', 'clinic']}><ClinicDetailPage /></RoleRoute>} />
 
         {/* فقط ادمین — کلینیک از طریق دعوتنامه در صفحه کلینیک خود دکتر اضافه می‌کند */}
-        <Route path="doctors" element={<RoleRoute roles={['admin']}><DoctorsPage /></RoleRoute>} />
-        <Route path="doctors/new" element={<RoleRoute roles={['admin']}><DoctorFormPage /></RoleRoute>} />
+        <Route path="doctors" element={<RoleRoute roles={['admin', 'representation']}><DoctorsPage /></RoleRoute>} />
+        <Route path="doctors/new" element={<RoleRoute roles={['admin', 'representation']}><DoctorFormPage /></RoleRoute>} />
         <Route path="doctors/:uuid" element={<RoleRoute roles={['admin', 'doctor', 'clinic']}><DoctorDetailPage /></RoleRoute>} />
         <Route path="profile" element={<RoleRoute roles={['doctor']}><DoctorProfilePage /></RoleRoute>} />