Wire store-backed CRUD for goods receipts and suppliers, and teach the API doc generator to expand $ref/allOf/array samples so route markdown shows full JSON shapes.
- Add GET /api/articleIndex returning the article search index (listSearchIndex)
- Add GET /api/category/export.zip returning a kategorien.zip with a
Windows-1252 CSV (depth-first, Ebene N columns) plus one AVIF per category image
(content-addressed, deduplicated) using jszip