Remap occupied furniture IDs during Catalog Studio imports

src/components/admin/studio/furniture-inspector.tsx

@@ -143,7 +143,9 @@ export function FurnitureComparison({
 			</div>
 			<p className="text-xs text-[var(--admin-text-muted)]">
 				Source values are compared with local data. Import may remap IDs and
-				translate names; existing SQL items are skipped by this import flow.
+				translate names. Existing furniture keeps its local IDs and SQL
+				settings; new furniture receives a free local ID when the source ID is
+				occupied.
 			</p>
 			<details>
 				<summary className="cursor-pointer font-medium">