feat: add created_at field display to admin user edit page (#23805)

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

packages/features/ee/users/components/UserForm.tsx

@@ -3,6 +3,7 @@ import { noop } from "lodash";
 import { Controller, useForm } from "react-hook-form";
 
 import { TimezoneSelect } from "@calcom/features/components/timezone-select";
+import { formatToLocalizedDate } from "@calcom/lib/dayjs";
 import { getUserAvatarUrl } from "@calcom/lib/getAvatarUrl";
 import { useLocale } from "@calcom/lib/hooks/useLocale";
 import { defaultLocaleOption, localeOptions } from "@calcom/lib/i18n";
@@ -32,7 +33,7 @@ type OptionValues = {
 
 type FormValues = Pick<
   User,
-  "avatarUrl" | "name" | "username" | "email" | "bio" | "theme" | "defaultScheduleId" | "allowDynamicBooking"
+  "avatarUrl" | "name" | "username" | "email" | "bio" | "createdDate" | "theme" | "defaultScheduleId" | "allowDynamicBooking"
 > &
   OptionValues;
 
@@ -146,6 +147,14 @@ export const UserForm = ({
           )}
         />
       </div>
+      {defaultValues?.createdDate && (
+        <div>
+          <Label className="text-default font-medium">{t("member_since")}</Label>
+          <div className="text-default mt-1 text-sm">
+            {formatToLocalizedDate(new Date(defaultValues.createdDate), localeProp)}
+          </div>
+        </div>
+      )}
       <Controller
         name="role"
         control={form.control}