Returns a paginated list of accounting-ledger transactions for the company. Each row is a
unified projection of a card transaction, bank transfer, payment, commission, invoice or
balance correction, and carries its rendición (expense-tracking) custom-column values.

Key features

• Pagination: _start / _end (default 25 items). Content-Range and X-Total-Count
  headers describe the window.
• Sorting: _field / _order. Sortable virtual fields include cartola_date (the
  default), merchant_name, card_name, card_last4, amount, target_amount,
  cumulative_balance and created_at.
• Filtering: any column can be filtered with a plain value or a JSON operator string
  (e.g. {"$gte": ...}, {"$in": [...]}, {"$like": "%...%"}).
• Cumulative balances: pass _with_cumulative_balances=true to inject running balances
  (target_cumulative_balance_with_commission). This requires a resolvable company.
• Hide commissions: pass _hide_commissions=true to omit commission rows.

Amount encoding

Most monetary fields are serialized as strings of integer cents. exchange_rate is a
human-formatted string; use exchange_rate_value for a machine-parseable rate.

Authorization

Non-admin callers see only transactions of companies where they hold the transactions_view
permission, plus their own transactions. Scoping is per-user across the caller's permitted
companies (via policy scope); the company-id header is not used to scope this list and
an absent/mismatched header does not by itself produce a 401.