Restore missing catalog admin API routes so Visual Manager works.

Co-authored-by: Cursor <[email protected]>

src/app/api/admin/catalog/icons/route.ts

@@ -0,0 +1,47 @@
+import { promises as fs } from "node:fs";
+import path from "node:path";
+import { withAdmin } from "@/lib/api-handler";
+import { apiOk } from "@/lib/api-response";
+import { PERMS } from "@/lib/permissions";
+
+const CATALOGUE_DIR = path.join(
+	/*turbopackIgnore: true*/ process.cwd(),
+	"public",
+	"swf",
+	"c_images",
+	"catalogue",
+);
+
+export const GET = withAdmin(
+	{ permission: PERMS.CATALOG_VIEW },
+	async (request) => {
+		const sp = request.nextUrl.searchParams;
+		const limit = Math.min(
+			Math.max(Number(sp.get("limit") || 120) || 120, 1),
+			500,
+		);
+		const offset = Math.max(Number(sp.get("offset") || 0) || 0, 0);
+		const search = (sp.get("search") || "").trim().toLowerCase();
+
+		let icons: number[] = [];
+		try {
+			const files = await fs.readdir(CATALOGUE_DIR);
+			icons = files
+				.map((f) => /^icon_(\d+)\.(?:png|gif)$/i.exec(f))
+				.filter((m): m is RegExpExecArray => Boolean(m))
+				.map((m) => Number(m[1]))
+				.filter((n) => Number.isFinite(n))
+				.sort((a, b) => a - b);
+		} catch {
+			icons = [];
+		}
+
+		if (search) {
+			icons = icons.filter((id) => String(id).includes(search));
+		}
+
+		const total = icons.length;
+		const slice = icons.slice(offset, offset + limit);
+		return apiOk({ icons: slice, total });
+	},
+);