Parse the top-level `attachments` array in WeKan board JSON exports,
group them by card ID, base64-decode the payload, and attach the
resulting files to the generated tasks so they land in Vikunja as
task attachments. Orphaned attachments (cardId with no matching card)
are silently skipped; decode errors are logged and skipped.
Add comprehensive tests for the WeKan conversion function including
edge cases (empty board, orphan cards, color mapping, multiple
checklists, unsupported fields) and a realistic JSON fixture file.
Add a file-based migration importer that reads WeKan board JSON exports
and creates Vikunja projects with kanban buckets, tasks, labels,
checklists, and comments.
WeKan lists become kanban buckets. Checklists are converted to HTML
task lists in the description. Card descriptions and comments are
converted from markdown to HTML using goldmark. Label colors are
mapped from WeKan's CSS color names to their actual hex values.
kolaente