b6fd05104a
Delete the four thumbnail sizes (``image_128``, ``image_256``, ``image_512``, ``image_1024``) from ``ir_attachment`` for ``res.partner`` records. Odoo 13+ regenerates all thumbnails automatically from ``image_1920`` on the next partner write. Also delete attachments whose ``res_model`` is ``NULL`` (orphaned ``factur-x.xml``, SCSS, ICS files) — these have no associated record and consume ~48 MB of filestore space.