initial commit after split

webui/src/features/admin/adminUtils.ts

@@ -0,0 +1,27 @@
+export function adminErrorMessage(error: unknown): string {
+  if (!(error instanceof Error)) return "The administrative operation failed.";
+  const message = error.message;
+  const jsonStart = message.indexOf("{");
+  if (jsonStart >= 0) {
+    try {
+      const parsed = JSON.parse(message.slice(jsonStart)) as { detail?: unknown };
+      if (typeof parsed.detail === "string") return parsed.detail;
+      if (Array.isArray(parsed.detail)) {
+        return parsed.detail.map((item) => typeof item === "object" && item && "msg" in item ? String((item as { msg: unknown }).msg) : String(item)).join("; ");
+      }
+    } catch {
+      // Fall through to the original message.
+    }
+  }
+  return message;
+}
+
+export function formatDateTime(value?: string | null): string {
+  if (!value) return "Never";
+  const date = new Date(value);
+  return Number.isNaN(date.getTime()) ? value : date.toLocaleString();
+}
+
+export function joinLabels(values: Array<{ name: string }>): string {
+  return values.length ? values.map((value) => value.name).join(", ") : "—";
+}