Fix exchange rate parity across all document types

- Fix exchange-rate service types to match actual backend response shapes
  (exchangeRate array, activeProvider success/error, used currencies as strings)
- Add ExchangeRateConverter to payments, expenses, and recurring invoices
- Set currency_id from customer currency in invoice/estimate selectCustomer()
- Load globalStore.currencies in ExchangeRateConverter on mount
- Pass driver/key/driver_config params to getSupportedCurrencies in provider modal
- Fix OpenExchangeRateDriver validateConnection to use base=USD (free plan compat)
- Fix checkActiveCurrencies SQLite whereJsonContains with array values
- Remove broken currency/companyCurrency props from ExpenseCreateView, use stores
- Show base currency equivalent in document line items and totals when exchange
  rate is active

resources/scripts-v2/features/company/settings/components/ExchangeRateProviderModal.vue

@@ -212,11 +212,18 @@ async function fetchCurrencies(): Promise<void> {
 
   isFetchingCurrencies.value = true
   try {
-    const params: Record<string, string> = { driver, key }
+    const driverConfig: Record<string, string> = {}
     if (currencyConverter.value.type) {
-      params.type = currencyConverter.value.type
+      driverConfig.type = currencyConverter.value.type
     }
-    const res = await exchangeRateService.getSupportedCurrencies()
+    if (currencyConverter.value.url) {
+      driverConfig.url = currencyConverter.value.url
+    }
+    const res = await exchangeRateService.getSupportedCurrencies({
+      driver,
+      key,
+      driver_config: Object.keys(driverConfig).length ? driverConfig : undefined,
+    })
     supportedCurrencies.value = res.supportedCurrencies ?? []
   } finally {
     isFetchingCurrencies.value = false