fix(import): honor cancellation after ID reservation waits

src/lib/services/furni-import-repair.test.ts

@@ -60,6 +60,7 @@ vi.mock("@/lib/services/swf-to-nitro", () => ({
 }));
 
 import { importSingleFurni } from "./furni-import";
+import { reserveFurnitureId } from "./furniture-id-reservation";
 
 const input = {
 	id: 42,
@@ -120,6 +121,46 @@ describe("completion of existing furniture", () => {
 		expect(mocks.execute).not.toHaveBeenCalled();
 		expect(mocks.append).not.toHaveBeenCalled();
 	});
+	it("cancels while waiting for another ID reservation without subsequent writes", async () => {
+		const controller = new AbortController();
+		const held = Promise.withResolvers<void>();
+		const release = Promise.withResolvers<void>();
+		const writing = Promise.withResolvers<void>();
+		mocks.select.mockImplementation(() => ({
+			from: () => ({ where: () => ({ limit: async () => [] }) }),
+		}));
+		mocks.execute.mockImplementation(async (query) => {
+			const { sql } = dialect.sqlToQuery(query);
+			return sql.includes("SELECT id, page_id")
+				? [[{ id: 123, page_id: "15" }], []]
+				: [[], []];
+		});
+		const prior = reserveFurnitureId(41, "prior_furniture", async () => {
+			held.resolve();
+			await release.promise;
+		});
+		await held.promise;
+		const importing = importSingleFurni({
+			...input,
+			signal: controller.signal,
+			onProgress: (stage) => {
+				if (stage === "writing_db") writing.resolve();
+			},
+		});
+		await writing.promise;
+		controller.abort();
+		release.resolve();
+		await prior;
+		await expect(importing).rejects.toMatchObject({ name: "AbortError" });
+		expect(
+			queries().every((query) => query.sql.trim().startsWith("SELECT")),
+		).toBe(true);
+		expect(mocks.append).not.toHaveBeenCalled();
+		// Cancellation also releases the reservation queue for the next importer.
+		await expect(
+			reserveFurnitureId(43, "next_furniture", async () => {}),
+		).resolves.toBe(43);
+	});
 	it("never deletes existing SQL when the nitro cannot be recovered", async () => {
 		mocks.stat.mockRejectedValue(new Error("missing"));
 		const result = await importSingleFurni(input);

src/lib/services/furni-import.ts

@@ -857,6 +857,7 @@ export async function importSingleFurni(params: {
 				originalId,
 				classname,
 				async (allocatedId) => {
+					signal?.throwIfAborted();
 					await db.execute(
 						sql`INSERT INTO items_base (id, sprite_id, public_name, item_name, type) VALUES (${allocatedId}, ${allocatedId}, ${bestName}, ${classname}, ${itemType})`,
 					);
@@ -869,6 +870,7 @@ export async function importSingleFurni(params: {
 				);
 		}
 	} catch (err) {
+		if (signal?.aborted) throw err;
 		return {
 			ok: false,
 			warnings,