lint: fix biome issues in new test files and helpers

src/actions/banners.test.ts

@@ -75,11 +75,7 @@ vi.mock("@/lib/db", async () => {
 
 import { WebsiteBanner } from "@/lib/db";
 import { PERMS } from "@/lib/permissions";
-import {
-	createBanner,
-	deleteBanner,
-	updateBanner,
-} from "./banners";
+import { createBanner, deleteBanner, updateBanner } from "./banners";
 
 function session() {
 	return {
@@ -172,7 +168,9 @@ describe("createBanner", () => {
 		const result = await createBanner({ image: "i" });
 		expect(result.ok).toBe(false);
 		expect(result.error).toBe("Validation failed");
-		expect((result as { fieldErrors: Record<string, string[]> }).fieldErrors.title).toBeDefined();
+		expect(
+			(result as { fieldErrors: Record<string, string[]> }).fieldErrors.title,
+		).toBeDefined();
 	});
 
 	it("rejects an out-of-range isActive value", async () => {
@@ -257,4 +255,4 @@ describe("deleteBanner", () => {
 		expect(result.ok).toBe(false);
 		expect(result.error).toBe("Validation failed");
 	});
-});
+});