Replace standalone catalog editor with the unified Visual Catalog studio

Make /admin/catalog a full-screen catalog studio that replaces the old
listing plus separate [id]/builder-club detail pages:

- Embed CatalogManagerWorkspace on /admin/catalog with a Normal/Builder
  Club toggle, Catalog Sync status, packages (normal), Organize imports
  and a diagnostics link to /admin/studio/maintenance.
- Manage BC items directly in the studio Items tab (new BcItemsEditor,
  CRUD via existing bc actions; /api/admin/catalog/items now serves BC).
- Inline editor: add pageTextTeaser field for both catalogs and remove
  the legacy full-editor links.
- Remove the 'Open full editor' context action from the tree.
- Move catalog-items-table (dir + barrel) and catalog-translate-tab out
  of the app route into src/components/admin/catalog and update all
  importers.
- Keep /admin/catalog/[id], builder-club/[id] and /admin/catalog/maintenance
  as redirects into the new studio; consolidate maintenance panels into
  /admin/studio/maintenance and point the nav item there.
- Delete the old listing/table/tabs/forms and the standalone bc-manager.

src/components/admin/catalog-manager/inline-editor.tsx

@@ -4,7 +4,6 @@ import {
 	AlertCircle,
 	ChevronDown,
 	ChevronRight,
-	ExternalLink,
 	Languages,
 	Loader2,
 	MonitorPlay,
@@ -20,16 +19,16 @@ import { updateBcPage } from "@/actions/catalog-bc";
 import {
 	type CatalogItemData,
 	CatalogItemsTable,
-} from "@/app/admin/catalog/[id]/catalog-items-table";
-import { CatalogTranslateTab } from "@/app/admin/catalog/[id]/catalog-translate-tab";
+} from "@/components/admin/catalog/catalog-items-table";
+import { CatalogTranslateTab } from "@/components/admin/catalog/catalog-translate-tab";
 import { BulkImportItems } from "@/components/admin/catalog/bulk-import-items";
 import { CatalogImagePicker } from "@/components/admin/catalog/catalog-image-picker";
 import { IconPicker } from "@/components/admin/catalog/icon-picker";
 import { QuickAddFurni } from "@/components/admin/catalog/quick-add-furni";
 import { AutoOrganize } from "@/components/admin/catalog-manager/auto-organize";
+import { BcItemsEditor } from "@/components/admin/catalog-manager/bc-items-editor";
 import { LiveCatalogPreview } from "@/components/admin/catalog-manager/live-catalog-preview";
 import { CatalogIcon, LAYOUT_COLORS } from "@/components/admin/catalog-tree";
-import Link from "@/components/link";
 import { Badge } from "@/components/ui/badge";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
@@ -133,10 +132,6 @@ function InlineEditorSession({
 	const [offersDirty, setOffersDirty] = useState(false);
 	const { dispatch, catalogType, canEdit } = useCatalogManager();
 	const catQs = catalogTreeQs(catalogType);
-	const pageHref =
-		catalogType === "bc"
-			? `/admin/catalog/builder-club/${pageId}`
-			: `/admin/catalog/${pageId}`;
 	const [page, setPage] = useState<PageDetail | null>(null);
 	const [loading, setLoading] = useState(false);
 	const [saving, setSaving] = useState(false);
@@ -425,17 +420,7 @@ function InlineEditorSession({
 							{t("preview.title")}
 						</Button>
 					)}
-					<Link href={pageHref} target="_blank">
-						<Button
-							variant="ghost"
-							size="sm"
-							className="h-7 text-xs gap-1 text-[var(--admin-text)]"
-						>
-							<ExternalLink className="h-3 w-3" />
-							{t("fullEditor")}
-						</Button>
-					</Link>
-				</div>
+					</div>
 			</div>
 
 			{/* Dirty banner */}
@@ -671,7 +656,10 @@ function InlineEditorSession({
 									<ChevronRight className="h-3.5 w-3.5" />
 								)}
 								Text fields
-								{(form.pageText1 || form.pageText2 || form.pageTextDetails) && (
+								{(form.pageText1 ||
+									form.pageText2 ||
+									form.pageTextDetails ||
+									form.pageTextTeaser) && (
 									<Badge variant="secondary" className="h-4 px-1 text-[9px]">
 										has content
 									</Badge>
@@ -713,6 +701,17 @@ function InlineEditorSession({
 											className="text-sm"
 										/>
 									</div>
+									<div className="space-y-1.5">
+										<Label className="text-xs">Text Teaser</Label>
+										<Textarea
+											rows={2}
+											value={String(form.pageTextTeaser || "")}
+											onChange={(e) =>
+												update("pageTextTeaser", e.target.value || null)
+											}
+											className="text-sm"
+										/>
+									</div>
 									<div className="space-y-1.5">
 										<Label className="text-xs">Special</Label>
 										<Input
@@ -750,17 +749,7 @@ function InlineEditorSession({
 						className="flex-1 overflow-y-auto px-4 pb-4 mt-2"
 					>
 						{catalogType === "bc" ? (
-							<div className="rounded-md border border-dashed px-4 py-8 text-center text-sm text-muted-foreground space-y-3">
-								<p>
-									BC items are managed on the full Builder Club page editor.
-								</p>
-								<Link href={pageHref} target="_blank">
-									<Button variant="outline" size="sm" className="gap-1">
-										<ExternalLink className="h-3 w-3" />
-										Open BC page editor
-									</Button>
-								</Link>
-							</div>
+							<BcItemsEditor pageId={page.id} canEdit={canEdit} />
 						) : itemsError && !itemsData ? (
 							<div className="flex items-center justify-center py-12">
 								<Button variant="outline" onClick={reloadItems}>