Add manufacturer catalog, category/manufacturer library management, and built-in cable flag

Normalizes manufacturer as a shared catalog entity (like device categories)
instead of free text on each device, giving the admin duplicate-detection
nudge a reliable signal. Adds full CRUD (including Admin direct-publish,
bypassing the submission queue) for categories, manufacturers, port types,
and cable types, plus a Categories & Manufacturers library modal and a
browse-by-manufacturer/search view in the device palette. Adds
Port.builtInCable so a captive/permanently-attached cable (a keyboard's USB
lead, a budget AVR's power cord) can be flagged and excluded from the BOM.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017DUU6CnxECCDeqDNYJgr5x

src/components/common/CategorySelect.tsx

@@ -11,13 +11,20 @@ export default function CategorySelect({
   value,
   onChange,
   className = 'mt-1 w-full rounded border border-slate-300 px-2 py-1 text-sm',
+  publishPublic = false,
 }: {
   value: string
   onChange: (categoryId: string) => void
   className?: string
+  /** When true, a category created here goes straight into the public
+   *  catalog (Admin-only) instead of your own private one — used when the
+   *  containing form is itself publishing directly, so a brand-new category
+   *  it references doesn't end up private and invisible to everyone else. */
+  publishPublic?: boolean
 }) {
   const catalog = useCatalogStore((s) => s.catalog)
   const addCustomDeviceCategory = useCatalogStore((s) => s.addCustomDeviceCategory)
+  const adminAddDeviceCategory = useCatalogStore((s) => s.adminAddDeviceCategory)
   const [creating, setCreating] = useState(false)
   const [draftName, setDraftName] = useState('')
 
@@ -29,7 +36,7 @@ export default function CategorySelect({
   const commitNewCategory = async () => {
     const trimmed = draftName.trim()
     if (trimmed) {
-      onChange(await addCustomDeviceCategory(trimmed))
+      onChange(await (publishPublic ? adminAddDeviceCategory(trimmed) : addCustomDeviceCategory(trimmed)))
     }
     setCreating(false)
     setDraftName('')