feat(web): BATCH 6 - feature permisos con grid por modulo [UDT-005]

- api/types.ts: PermisoDto, AssignPermisosRequest
- api/listPermisos, getRolPermisos, assignPermisos
- hooks: usePermisos, useRolPermisos, useAssignPermisos (TanStack Query)
- components/RolPermisosEditor: checkbox-grid agrupado por modulo (codigo.split(':')[0])
- pages/RolPermisosPage: selector rol activo + guard admin + RolPermisosEditor
- router.tsx: ruta /admin/permisos
- AppSidebar.tsx: link Permisos (KeyRound icon) en seccion admin
- tests: 5 smoke tests RolPermisosEditor (render, prefill, toggle, save, 400)

src/web/src/router.tsx

@@ -5,6 +5,7 @@ import { CreateUserPage } from './features/users/pages/CreateUserPage'
 import { RolesPage } from './features/roles/pages/RolesPage'
 import { NewRolPage } from './features/roles/pages/NewRolPage'
 import { EditRolPage } from './features/roles/pages/EditRolPage'
+import { RolPermisosPage } from './features/permisos/pages/RolPermisosPage'
 import { HomePage } from './pages/HomePage'
 import { PublicLayout } from './layouts/PublicLayout'
 import { ProtectedLayout } from './layouts/ProtectedLayout'
@@ -88,6 +89,16 @@ export function AppRoutes() {
           </ProtectedRoute>
         }
       />
+      <Route
+        path="/admin/permisos"
+        element={
+          <ProtectedRoute>
+            <ProtectedLayout>
+              <RolPermisosPage />
+            </ProtectedLayout>
+          </ProtectedRoute>
+        }
+      />
       <Route path="*" element={<Navigate to="/" replace />} />
     </Routes>
   )