get_document_totals gains type=received_invoices: whole-set gross sums per
currency + total_czk via the same toCzk logic as the stats route (unknown
currencies skipped + reported), month/year via the literal columns (bare
year supported), unpaid/paid filter, period echo. invoices.view joined the
coarse gate (the per-type re-check keeps other families locked); the tool
description routes 'kolik jsme utratili' questions here.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>