Creates an AccountImporter with the given service dependencies.
All services needed for account processing.
Iterates all accounts in a canonical scrape result and processes each.
The bank whose accounts are being processed.
The bank's configuration for date filtering and targets.
Canonical scrape result produced by Phase-2 mapper.
Aggregated totals of imported and skipped transactions.
Processes scraped accounts: imports transactions, reconciles balances, tracks metrics.