phsl / new-api

Summary:
The redemption list occasionally displayed an invalid range such as “Items -9 - 0” and failed to highlight page 1 after a refresh. This was caused by the table being initialized with `currentPage = 0`.

Changes:
• update `useEffect` to load data starting from page 1 instead of page 0
• refactor `loadRedemptions` to accept `page` (default 1) and sanitize backend‐returned pages (`<= 0` coerced to 1)
• keep other logic unchanged

Impact:
Pagination text and page selection now show correct values on first load or refresh, eliminating negative ranges and ensuring the first page is properly highlighted.