feat(housekeeping): integrate studio operations

src/lib/services/upload-import.ts

@@ -234,6 +234,7 @@ export async function uploadSingleFurni(params: {
 	nitroBuffer: Buffer;
 	iconBuffer?: Buffer | null;
 	generateSql?: boolean;
+	signal?: AbortSignal;
 }): Promise<UploadResult> {
 	const {
 		classname,
@@ -250,7 +251,9 @@ export async function uploadSingleFurni(params: {
 		nitroBuffer,
 		iconBuffer,
 		generateSql = false,
+		signal,
 	} = params;
+	signal?.throwIfAborted();
 	const warnings: string[] = [];
 
 	if (!/^[\w\-.*]+$/.test(classname)) {
@@ -280,6 +283,7 @@ export async function uploadSingleFurni(params: {
 	}
 
 	await ensureDirectories();
+	signal?.throwIfAborted();
 	const assetTargets = await getFurniAssetWriteTargets();
 	const { iconDir, nitroDir } = assetTargets;
 
@@ -297,6 +301,7 @@ export async function uploadSingleFurni(params: {
 		};
 	}
 	await fs.writeFile(nitroPath, nitroBuffer);
+	signal?.throwIfAborted();
 
 	let iconFileName: string | null = null;
 	let iconPath: string | null = null;
@@ -307,6 +312,7 @@ export async function uploadSingleFurni(params: {
 	}
 
 	const mirroredPaths: string[] = [];
+	signal?.throwIfAborted();
 	await mirrorUploadedAsset(
 		nitroPath,
 		nitroFileName,
@@ -346,6 +352,7 @@ export async function uploadSingleFurni(params: {
 	const interactionModesCount = autoInteraction.interactionModesCount;
 
 	let newId: number;
+	signal?.throwIfAborted();
 	try {
 		newId = await allocateItemsBaseId(async (nextId) => {
 			await db.execute(sql`
@@ -372,6 +379,7 @@ export async function uploadSingleFurni(params: {
 	}
 
 	try {
+		signal?.throwIfAborted();
 		const furniEntry = buildFurniEntry({
 			id: newId,
 			classname,
@@ -390,6 +398,7 @@ export async function uploadSingleFurni(params: {
 
 	let catalogItemId: number | null = null;
 	try {
+		signal?.throwIfAborted();
 		// Skip when the item already has a catalog row — re-uploads must never
 		// create a second row for the same item_ids.
 		const [existingCatalog] = (await db.execute(sql`