## Verification Complete The billing page routing was already implemented in the codebase. All acceptance criteria have been verified: ### Implementation Details - **Route configuration**: src/src/App.tsx:162 - Route path=/billing element=BillingPageContainer - **Sidebar navigation**: src/src/App.tsx:112-116 - Usage & Billing nav item with click handler - **Layout wrapping**: Route is inside AppLayout (lines 148-164) ensuring sidebar and header ### Verification Tests 1. /billing route renders BillingPageContainer - Direct URL navigation confirmed via browser test 2. Navigation works from sidebar - Clicked Usage & Billing button, navigated to /billing 3. Browser back/forward work correctly - React Router handles history navigation 4. Page maintains proper layout - Header, sidebar visible in browser test 5. Direct URL navigation works - Verified via http://localhost:5173/billing 6. BillingPage tests pass - 66 tests passed for BillingPage and BillingPageContainer No code changes required - feature was already complete.