feat: switch currency widget to Frankfurter v2 API#1
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Replaces exchangerate-api.com with frankfurter.dev for the dashboard Currency widget. Frankfurter is open-source, sourced from central banks, and supports historical lookups by date — which we'll need for multi-currency budget conversion in a follow-up change. Changes: - CurrencyWidget: fetch /v2/rates?base="es= (same response shape for the field we read, data.rates[to]). - server CSP: swap api.exchangerate-api.com for api.frankfurter.dev in connect-src. - DashboardPage test: update MSW intercept to the new host and v2 response payload. - wiki: point readers at Frankfurter and note the upcoming historical use case. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
exchangerate-api.comwithfrankfurter.dev(v2) as the rate source for the dashboard CurrencyWidget.connect-srcallowlist accordingly, plus the MSW intercept inDashboardPage.test.tsxand the wiki entry inDashboard-Widgets.md.data.rates[to]field is read, so the widget behavior is unchanged. The new endpoint shape isGET /v2/rates?base={from}"es={to}returning{ base, date, rates: { [code]: number } }.Why
Frankfurter is open-source, aggregates data from central banks, and supports historical lookups by date. That historical capability is the reason for the swap — it will be used in a follow-up PR to convert prior-dated expenses for multi-currency budgets. This PR only does the API swap; no UI change.
Test plan
npx vitest run src/pages/DashboardPage.test.tsx— 32/32 pass with the updated MSW intercept.🤖 Generated with Claude Code