Add dms field for account

This module connects the Document Management System (DMS) with accounting documents. On every invoice, bill, credit note or journal entry, a new "Documents" tab appears in the form view, next to the other tabs. There users can see and manage the folders and files linked to that specific accounting entry.

The tab is only shown once the document has been saved, so it does not appear on brand-new unsaved records.

Behind the scenes, the accounting entry model (account.move) is extended with the DMS field mixin, which is what makes the document folders available on the record. The module also ships demo data that creates an access group called "Everyone for Account DMS" for users with invoicing rights, and a field template named "Account" linked to the accounting entry model and its salesperson field. This means, in a demo database, accounting users get create, edit and delete rights on those document folders.

No new menus, buttons, reports or automated rules are added by the code itself; the change is limited to the extra Documents tab on the accounting document form and the supporting DMS configuration records.