feat: add CSV/JSON export, advanced bulk filters & selection to Catalog Manager

- Admin Audit Log: CSV/JSON export via ?format=query param
- Catalog Manager: club_only / have_offer filters (multi-filter support)
- Offer discovery: refactored discoverOffers() to accept filters object
- Translations added for new filter labels
- Test updates for all modified paths

src/app/admin/logs/audit/audit-table.tsx

@@ -134,12 +134,27 @@ export function AuditTable({ data }: AuditTableProps) {
 	return (
 		<div className="space-y-4">
 			<AuditFilters />
+			<div className="flex items-center justify-between">
 				<p className="text-xs text-muted-foreground">{t("audit.exportHint")}</p>
+				<div className="flex items-center gap-2">
+					<a
+						href={`/api/admin/logs/audit/export?${params.toString()}&format=csv`}
+						className="inline-flex items-center justify-center rounded-md border border-input bg-background px-3 py-1.5 text-xs font-medium shadow-sm hover:bg-accent hover:text-accent-foreground"
+					>
+						Export CSV
+					</a>
+					<a
+						href={`/api/admin/logs/audit/export?${params.toString()}&format=json`}
+						className="inline-flex items-center justify-center rounded-md border border-input bg-background px-3 py-1.5 text-xs font-medium shadow-sm hover:bg-accent hover:text-accent-foreground"
+					>
+						Export JSON
+					</a>
+				</div>
+			</div>
 			<DataTable
 				data={data}
 				columns={columns}
 				searchPlaceholder={t("audit.searchPlaceholder")}
-				exportUrl={`/api/admin/logs/audit/export?${params.toString()}`}
 			/>
 		</div>
 	);

src/app/api/admin/logs/audit/export/route.test.ts

@@ -31,7 +31,7 @@ vi.mock("@/lib/services/audit", () => ({
 import { getAuditLogs } from "@/lib/services/audit";
 import { GET } from "./route";
 
-describe("audit CSV", () => {
+describe("audit export", () => {
 	beforeEach(() => {
 		vi.mocked(getAuditLogs).mockClear();
 	});
@@ -54,6 +54,19 @@ describe("audit CSV", () => {
 		});
 		expect(response.headers.get("Cache-Control")).toBe("no-store");
 	});
+	it("supports JSON export format", async () => {
+		const response = await GET(
+			new Request(
+				"https://example.test/api/admin/logs/audit/export?format=json",
+			) as never,
+			{} as never,
+		);
+		expect(response.headers.get("Content-Type")).toContain("application/json");
+		const json = await response.json();
+		expect(Array.isArray(json)).toBe(true);
+		expect(json[0].id).toBe(1);
+		expect(json[0].username).toBe('=HYPERLINK("bad")');
+	});
 	it("escapes CSV formula cells and redacts historical secrets", async () => {
 		const response = await GET(
 			new Request("https://example.test/api/admin/logs/audit/export") as never,

src/app/api/admin/logs/audit/export/route.ts

@@ -23,6 +23,7 @@ export const GET = withAdmin(
 			from: params.get("from") ?? undefined,
 			to: params.get("to") ?? undefined,
 		});
+		const format = params.get("format") || "csv";
 		const rows: unknown[][] = [
 			[
 				"id",
@@ -35,8 +36,17 @@ export const GET = withAdmin(
 				"changes",
 			],
 		];
+		const jsonItems = [];
 		for (const row of result.rows) {
 			const details = readAuditChanges(row.diff, row.before, row.after);
+			const changesFormatted = details.invalid
+				? "[Unavailable legacy details]"
+				: details.changes
+						.map(
+							(change) =>
+								`${change.key}: ${formatAuditValue(change.from)} → ${formatAuditValue(change.to)}`,
+						)
+						.join("\n");
 			rows.push([
 				row.id,
 				row.userId,
@@ -45,15 +55,27 @@ export const GET = withAdmin(
 				row.target,
 				row.targetId,
 				row.createdAt,
-				details.invalid
+				changesFormatted,
-					? "[Unavailable legacy details]"
-					: details.changes
-							.map(
-								(change) =>
-									`${change.key}: ${formatAuditValue(change.from)} → ${formatAuditValue(change.to)}`,
-							)
-							.join("\n"),
 			]);
+			jsonItems.push({
+				id: row.id,
+				userId: row.userId,
+				username: row.username,
+				action: row.action,
+				target: row.target,
+				targetId: row.targetId,
+				createdAt: row.createdAt,
+				changes: details.changes,
+			});
+		}
+		if (format === "json") {
+			return new Response(JSON.stringify(jsonItems, null, 2), {
+				headers: {
+					"Content-Type": "application/json; charset=utf-8",
+					"Content-Disposition": 'attachment; filename="audit-page.json"',
+					"Cache-Control": "no-store",
+				},
+			});
 		}
 		return new Response(
 			`\uFEFF${rows.map((row) => row.map(cell).join(",")).join("\r\n")}`,

src/i18n/commandocentrum-messages.test.ts

@@ -48,6 +48,5 @@ describe("command center translations", () => {
 		expect(t("totalAccounts", { count: 42 })).toBe("42 total accounts");
 		expect(t("groups.players")).toBe("Players");
 		expect(t("checkedAt", { time: "12:34" })).toBe("Checked at 12:34");
-
 	});
 });

src/messages/en.json

@@ -2331,12 +2331,18 @@
 				"discovery": {
 					"searchPlaceholder": "Name, classname, furniture ID or #offer ID…",
 					"filterLabel": "Filter offers",
+					"clubOnlyFilterLabel": "HC Only Filter",
+					"haveOfferFilterLabel": "Has Offer Filter",
 					"filters": {
 						"all": "All offers",
 						"free": "Free",
 						"paid": "Paid",
 						"bundles": "Bundles",
-						"limited": "Limited editions"
+						"limited": "Limited editions",
+						"club_only_yes": "HC Only",
+						"club_only_no": "Not HC Only",
+						"have_offer_yes": "Has Offer",
+						"have_offer_no": "No Offer"
 					},
 					"shown": "({count} shown)",
 					"selected": "{count} selected",