Fix Recognition Feed page-size persistence

[prsmith777]

Summary

• use the server-read page-size preference when the Recognition Feed URL has no explicit pageSize
• keep pagination navigation aligned with the displayed saved row count
• add a regression assertion covering both fallback paths

Verification

• node --test test/table-page-size-preference.test.mjs test/recognition-feed-filter-preference.test.mjs
• yarn test
• yarn typecheck
• yarn lint