feat(catalog): add reviewed bulk edits and complete category duplication

src/features/catalog/domain/duplicate.test.ts

@@ -0,0 +1,36 @@
+import { describe, expect, it } from "vitest";
+import { duplicateSubtree, remapIncludes } from "./duplicate";
+
+describe("category duplication", () => {
+	const pages = [
+		{ id: 1, parent_id: -1 },
+		{ id: 2, parent_id: 1 },
+		{ id: 3, parent_id: 2 },
+		{ id: 4, parent_id: -1 },
+	];
+	it("collects all descendants in parent-first order", () =>
+		expect(duplicateSubtree(pages, 1, 4).map((p) => p.id)).toEqual([1, 2, 3]));
+	it("rejects corrupt source cycles and missing destination", () => {
+		expect(() =>
+			duplicateSubtree(
+				[
+					{ id: 1, parent_id: 2 },
+					{ id: 2, parent_id: 1 },
+				],
+				1,
+				-1,
+			),
+		).toThrow();
+		expect(() => duplicateSubtree(pages, 1, 99)).toThrow();
+	});
+	it("rejects missing source ancestry", () =>
+		expect(() =>
+			duplicateSubtree([{ id: 1, parent_id: 99 }], 1, -1),
+		).toThrow());
+	it("remaps internal includes and preserves external references", () =>
+		expect(remapIncludes("2;4", new Map([[2, 20]]), new Set([2, 4]))).toBe(
+			"20;4",
+		));
+	it("rejects broken included references", () =>
+		expect(() => remapIncludes("99", new Map(), new Set([2]))).toThrow());
+});