account_payment_method_base

Purpose

Expose and enhance the technical account payment methods so they can be managed through the accounting backend.

Features

account.payment.method: ensures technical payment methods sort by code and type while remaining searchable by name or code.
account.payment.method: exposes related payment method lines through a one-to-many relation for quick access.
account.payment.method: composes display names with codes and payment type labels for clearer identification.
account.payment.method: provides a dedicated form view to maintain payment method names, codes, and payment types.
account.payment.method: offers a list view with payment type badges and disabled record creation for controlled browsing.
account.payment.method: adds search filters and grouping by payment type to locate technical payment methods quickly.
Accounting: introduces a menu entry and window action so accountants can reach the technical payment methods workspace.