I would use an export filter, probably the table-cell one. For the case above, here's a possible filter implementation:
(defun ndk/html-filter-table-cell-bullets(text backend info)
(when (org-export-derived-backend-p backend 'html)
(replace-regexp-in-string " - " "<br/>- " text)))
The link is dispatched to a wrong handler, which means your org-attach package is
probably not loaded yet. You can verify it by inspecting the org-link-parameters variable to
check whether the attachment link type is present: evaluate (assoc "attachment" org-link-parameters) - if it returns nil, that means that org-attach is not loaded yet. You can ...