Backfill icons too in the Gamedata bundle sync

Extend the post-import backfill to also copy missing _icon.png files
into /var/www/Gamedata/icons (in addition to nitros into
bundled/furniture) so all imported furniture shows an icon in-game.
Report copied nitros and icons separately in the API/SSE responses.

src/app/api/admin/import/furni/batch/route.ts

@@ -9,7 +9,7 @@ import {
 	ensureFurniOwnership,
 	importSingleFurni,
 	reconcileImportedOfferIds,
-	syncNitrosToGamedataBundle,
+	syncAssetsToGamedataBundle,
 } from "@/lib/services/furni-import";
 import { rcon } from "@/lib/services/rcon";
 import type { ImportSingleResult } from "@/types/furni";
@@ -218,10 +218,13 @@ export const POST = withAdmin(
 				let offerIdsFixed = 0;
 				let ownershipFixed: string[] = [];
 				let nitrosSynced: string[] = [];
+				let iconsSynced: string[] = [];
 				try {
 					offerIdsFixed = (await reconcileImportedOfferIds()).fixed;
 					ownershipFixed = (await ensureFurniOwnership()).fixed;
-					nitrosSynced = (await syncNitrosToGamedataBundle()).copied;
+					const assetsSynced = await syncAssetsToGamedataBundle();
+					nitrosSynced = assetsSynced.copiedNitros;
+					iconsSynced = assetsSynced.copiedIcons;
 				} catch (err) {
 					console.warn(
 						"[import-furni] Post-import reconcile/ownership failed:",
@@ -237,6 +240,7 @@ export const POST = withAdmin(
 					offerIdsFixed,
 					ownershipFixed,
 					nitrosSynced,
+					iconsSynced,
 					duration: Date.now() - startTime,
 				});