Shows opening debit/credit, period debit/credit, closing debit/credit
columns matching standard Egyptian accounting trial balance format.
Adds CSV export endpoint with UTF-8 BOM for Arabic Excel support.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Change .card overflow from hidden to visible. The hidden overflow
caused Chrome to miscalculate paint regions for containers with
many child elements (chart of accounts, rules, etc.), resulting
in content being invisible until a repaint was triggered.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

sethderyj