feat(catalog): prevent and repair Arcturus emulator data errors

Block invalid catalog_items writes at the API level (points currency
allowlist, non-negative prices, positive amount, limited stack >= sold
count, unique sibling order numbers) and auto-assign unique order numbers
on bulk create. Add a catalog-maintenance scan + transactional repair that
fixes pre-existing rows: resets unsupported points_type, clamps negative
costs, sets amount to 1, raises limited_stack, renumbers duplicate orders
and deletes offers with missing page/item references. Surface the issue
count and a fix button in the admin maintenance panel.

Also: add enabled/retired flag to clone sources, classify poster and
currency furniture in item-kind, and remove the obsolete update-Nitrov3.sh.

src/components/admin/catalog/catalog-maintenance-panel.tsx

@@ -6,6 +6,7 @@ import { toast } from "sonner";
 import {
 	applyAlignIdsAction,
 	fixCatalogOffersAction,
+	fixEmulatorIssuesAction,
 	fixEverythingAction,
 	fixSpriteIdsAction,
 	getFurniHealthAction,
@@ -33,6 +34,7 @@ interface Health {
 	catalogDuplicates: number;
 	catalogBcDuplicates: number;
 	catalogPageDuplicates: number;
+	emulatorIssues: number;
 }
 
 export function CatalogMaintenancePanel() {
@@ -175,6 +177,11 @@ export function CatalogMaintenancePanel() {
 								value={health.catalogPageDuplicates}
 								hint="same caption under the same parent (double links)"
 							/>
+							<Stat
+								label="Emulator catalog issues"
+								value={health.emulatorIssues}
+								hint="points currency, prices, stack, orphans, order numbers"
+							/>
 						</>
 					)}
 				</CardContent>
@@ -221,6 +228,19 @@ export function CatalogMaintenancePanel() {
 				>
 					Reconcile FurnitureData ↔ DB
 				</Button>
+				<Button
+					variant="secondary"
+					disabled={busy !== null}
+					onClick={() =>
+						void run(
+							"emulator",
+							fixEmulatorIssuesAction,
+							"Emulator catalog constraints fixed",
+						)
+					}
+				>
+					Fix emulator constraints
+				</Button>
 			</div>
 
 			<Card>