Extend connection-check endpoint response

[lukaskett]

Is your feature request related to a problem? Please describe.
When using the endpoint for conenction check i want to display the event name, event date and organiser to distinguish between other events. Event name like Oblastní žebříček is very common and can led to confusion.

Describe the solution you'd like
I would like to have event date and organiser name in the reponse as well.

"organizer": "OK Kamenice",
"date": "2026-04-18T00:00:00.000Z",

Describe alternatives you've considered
Use just event name.

Additional context
Actual response

{
    "message": "OK",
    "error": false,
    "code": 200,
    "results": {
        "data": {
            "valid": true,
            "event": {
                "id": "cmo35y99n000606ppms9isa4u",
                "name": "Oblastní žebříček"
            },
            "credentials": {
                "valid": true,
                "reason": null,
                "authType": "eventBasic",
                "expiresAt": "2026-04-24T17:10:02.167Z"
            },
            "classes": {
                "valid": true,
                "items": []
            },
            "competitors": {
                "valid": true,
                "items": []
            }
        }
    },
    "meta": {
        "requestId": "888015c3-0562-4528-ae0b-be38af7ecd27",
        "timestamp": "2026-04-23T10:44:13Z"
    }
}