fix(housekeeping): retain admin banner shim

src/actions/content-legacy-parity.test.ts

@@ -335,4 +335,13 @@ describe("Content legacy wrappers", () => {
 			).toBe(true);
 		}
 	});
+
+	it("routes the real banner manager through the required compatibility action", () => {
+		const source = readFileSync(
+			"src/app/admin/banners/banners-manager.tsx",
+			"utf8",
+		);
+		expect(source).toContain('from "@/actions/admin-banners"');
+		expect(source).not.toContain('from "@/actions/banners"');
+	});
 });