Single vendor source (public.vendors) and single COA source (accounting.accounts)
across both bill flows:
- Forward sync now carries public.bills.expense_account_id into the mirrored
accounting.bill_items.account_id (when it resolves to accounting.accounts).
- Reverse trigger flows a GL change on a mirrored accounting bill line back to
public.bills.expense_account_id (loop-guarded).
- New public.ensure_accounting_vendor RPC resolves a chosen public vendor to its
accounting.vendors row; one-time backfill of mirrored line account_id.
- BillApprovalsPage GL pickers now use ChartOfAccountsDropdown (accounting.accounts).
- AccountingBillsPage vendor picker now lists public.vendors scoped to the
company's association and maps to accounting.vendors on save.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
