Partner Readonly Security

This module introduces a dedicated permission called "Partner edition" so that viewing contacts and editing them can be separated.

• Users who do not have this permission keep read access to contacts, but any attempt to create, modify or delete a contact is refused with an error message telling them to contact their administrator.
• Because the refusal happens at the access-check level, the create, edit and delete buttons are not shown to those users, so the contact screens appear in read-only mode.
• Administrators are automatically given the new permission when the module is installed, so they are not locked out.
• The permission is managed in the standard Odoo groups screen under the Usability category, where it can be assigned to any user.
• The rule applies to the res.partner model, which is the shared record behind contacts, customers, vendors and company addresses, so it affects all of those areas.
• Superusers and internal technical operations are not blocked.

No new menus, reports or automated actions are added; the module only changes who is allowed to change partner records.