Changes
1. web/src/helpers/token.js
• `fetchTokenKeys` now calls `/api/token/?p=1&size=10` (1-based paging).
• Supports new response shape `{ items, total, page, page_size }`; falls back gracefully if array is returned.
• Filters active tokens from `tokenItems`, not `data` directly.
`useTokenKeys` remains unchanged—its consumer code receives the same list of active keys.
