Get search activity summary for an API key

curl --request GET \
  --url https://example.com/api/admin/activity/api-keys/{apiKeyId}/summary \
  --cookie better-auth.session_token=

{
  "displayName": "<string>",
  "email": "<string>",
  "errorCount": 123,
  "p50": 123,
  "p95": 123,
  "p99": 123,
  "totalSearches": 123
}