feat: implement sysadmin subscription management and plan usage cycle recalculation tools

sysadmin-cli/src/App.tsx

@@ -4,6 +4,7 @@ import { DashboardPage } from './pages/DashboardPage';
 import { UsersPage } from './pages/UsersPage';
 import { WapServersPage } from './pages/WapServersPage';
 import { CompaniesPage } from './pages/CompaniesPage';
+import { PlansPage } from './pages/PlansPage';
 
 function App() {
   return (
@@ -13,6 +14,7 @@ function App() {
           <Route index element={<DashboardPage />} />
           <Route path="users" element={<UsersPage />} />
           <Route path="companies" element={<CompaniesPage />} />
+          <Route path="plans" element={<PlansPage />} />
           <Route path="wapservers" element={<WapServersPage />} />
         </Route>
       </Routes>