Approve (complete) / reject buttons on pending payouts, hitting the new admin
action endpoint (which debits the balance + journals on approve). Toasts + list
and overview invalidation on success.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Ledger section with sub-tabs: overview (money held/owed, payouts by status, and
a reconciliation warning card), payouts + transactions lists, per-seller balances
list, and a per-seller detail showing recorded vs derived balance + discrepancy,
bank accounts and payout history. Enabled the Ledger nav item.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
