[daniel-tsx]

Stacked PR 2 of 4 (#9 → #10 → #11 → #12), on top of #9 (feat/web-ui-shell). After #9 is squash-merged, rebase onto main (git rebase --onto origin/main 0387eb3) so the diff shows only this slice.

What and why

Slice 2: findable registers, exact money and a command palette. Operators had no search, filter, sort or pagination, and IDs were truncated with no full value or copy. formatMoney used Number(value) / 100 with only three zero-decimal currencies, so CLP and ISK displayed 100× too small and BHD and KWD 10× wrong. No API, schema or business-logic change.

• lib/format.ts: minor units → decimal with string arithmetic and BigInt, using Stripe's zero-, two- and three-decimal exponents. Money reads USD 1,234.56 outside tables; every timestamp reads 2026-10-24 07:15:36 UTC.
• Every register gets search, facet chips with counts, a currency filter, sortable headers (aria-sort) and a summary saying what the filters cover. State lives in the URL via next/form. Payments page through the API; the ledger currency filter uses the API's currency parameter.
• IdCell (short ID, full value in the title and for screen readers, copy button, payment links), Amount with raw minor units on hover, and a Ccy column.
• Command palette (/, Ctrl/⌘+K): open a payment by UUID, search any register, or jump to a page. Native <dialog> and the combobox pattern.
• The ledger groups lines by journal with debit/credit totals and flags the journal the 500-line API limit may cut short.
• List pages show the offline state instead of the 500 page when the API is unreachable.

Screenshots: .tmp/web-ui-revamp/screens/slice2 (local, not attached).

Review guide

• Read carefully:
  • apps/web/lib/format.ts: money must never change value.
  • apps/web/lib/list.ts: money sorts by currency, then exact minor units.
  • apps/web/app/ledger/page.tsx: journal grouping and the API-limit flag.
  • apps/web/components/command-palette.tsx: the only new interactive client component.
• Skim: the seven list pages, which follow one pattern, and the globals.css additions.
• Least confident about: filters apply to the rows each API returns (100 payments per page; the latest 200, 300 or 500 elsewhere). Each summary says so; real server-side search is an API follow-up.
• Tests removed, weakened or skipped: none.

Task size

T1 (apps/web only). Money formatting is display-only; no ledger, rounding or settlement logic changed.

Checks

Result	Command	Scope / notes
PASS	pnpm --filter @fintech-lab/web lint	web
PASS	pnpm --filter @fintech-lab/web build	web; list pages 107 kB first load (was 106 kB)
PASS	pnpm --filter @fintech-lab/web typecheck	web
PASS	pnpm --filter @fintech-lab/web test	12/12: formatting (including values above 2^53), timestamps, URL building, money sort, status
PASS	git diff --check	whitespace
PASS	Browser	status chip, search + currency, amount sort, no-match state; palette by keyboard (Ctrl+K → UUID → Enter → trace; arrows; Esc)
NOT RUN	pnpm lint/test/build/typecheck (repo-wide) at this head	run at the top of the stack (#12), all PASS
NOT RUN	Hosted CI	pending on this PR

Unverified boundaries

Browser checks were manual. Copy buttons were checked for focus and labels, not clipboard contents. With only 8 local payments, pagination past one page was checked by logic and URL, not with more than 100 rows.

Review

T1 self-review (ponytail-review). Findings and disposition:

• An out-of-range ?page= said "No payments yet" while payments existed → fixed, with a "Back to the newest" link.
• A hardcoded currency list slipped into the ledger → removed.
• BigInt literals aren't allowed at the ES2017 target → replaced with BigInt() calls.

Docs and temporary files

docs/ui-signature.md: new "Money and time" and "Finding records" sections. Temporary files as listed in #9.

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