bermudalamb
61c12fd438
Three of the four candidates were real. The fourth was my mistake in the issue. **The category tree adapter**, duplicated verbatim between `CategoryTreeSelect.tsx` and `FilterDrawer.tsx`. This one was mine: #139 moved the storefront filter to a `TreeSelect` and copied the admin's adapter rather than sharing it, with a comment saying the shape "matches the admin's CategoryTreeSelect so the two stay comparable" — an argument for one implementation that instead produced two. It now lives in `filters.ts` beside `buildCategoryTree`, which was already shared for exactly the same reason: one meaning, one implementation. `Categories.tsx` keeps its own. It builds a different shape for a real antd `Tree`, keyed rather than valued, with a title that is a React node carrying that screen's buttons. Genuinely different, and folding it in would mean a parameterised adapter that serves neither case clearly. **The `item_images` insert loop**, written separately by create and update and differing only in where the id came from and where the sort order started. Both are parameters now, which also means the `/uploads/` prefix is written once — #103 made that the value `uploadUrl` joins an origin onto, so it is a contract rather than a string. Extracting it turned up two things the inline versions hid. Create indexed `files[i]?.filename ?? ''`, so a missing element would have stored a path pointing at the uploads directory itself; iterating by entry removes the possibility rather than defending against it. And the helper's typed `itemId` surfaced that `req.params.id` is `string | undefined` under `noUncheckedIndexedAccess`, which the old inline `unknown[]` swallowed — now `Number()`, as the `setItemTags` call two lines above already did. **The optional-field guards**, eight identical lines opening both routes. The distinction worth preserving is that `undefined` means "not submitted", which update reads as "leave as-is", so an unparseable value has to be told apart from an absent one. That is what makes it more than a null check and worth stating once. **`TAG_COLORS` was not a duplication.** The issue listed four files on the strength of a grep that also matched `STATUS_TAG_COLORS` in `Admin.tsx` — a status-to-colour map for the inventory table, unrelated to the tag palette. What remains is one definition in `backend/src/utils.ts` and one mirror in `frontend/src/admin/Tags.tsx`, already carrying a comment pointing at the other, which is the same treatment `ALLOWED_IMAGE_TYPES` gets and is correct: there is no shared package, and creating one for a colour list would cost more than it saves. Verified beyond the type checker, since three of these are pure moves that compile either way: 278 unit and 254 integration tests, and the end-to-end specs covering both consumers of the shared adapter — the storefront drawer and the admin item form's category picker, including inline category creation. Closes #182