Backend expects time with timezone at this moment

[lukaskett]

Describe the bug
Backend expects time with timezone but according to iof xml xsd it's not mandatory. For example tag like this:

<StartTime>2025-11-14T19:43:00</StartTime>

To Reproduce
Upload attached xml with start list.

vysledky_nove.xml

Expected behavior
Upload should work without issues

Screenshots
If applicable, add screenshots to help explain your problem.

Additional context
Error log:

PrismaClientValidationError:
Invalid `prisma.competitor.create()` invocation:

{
  data: {
    class: {
      connect: {
        id: 105
      }
    },
    firstname: "Martin",
    lastname: "Šimáček",
    nationality: undefined,
    registration: "RCZ9701",
    license: null,
    organisation: "Reprezentace juniorů a dospělých",
    shortName: undefined,
    bibNumber: 18,
    startTime: "2025-11-14T19:43:00",
               ~~~~~~~~~~~~~~~~~~~~~
    finishTime: null,
    time: null,
    card: 7002111,
    status: "Inactive",
    lateStart: false,
    team: undefined,
    leg: undefined,
    externalId: "RCZ9701",
    note: null,
    updatedAt: new Date("2025-11-22T15:07:36.736Z")
  }
}

Invalid value for argument `startTime`: premature end of input. Expected ISO-8601 DateTime.

[lukaskett]

The issue was encountered during Radio-O-Manager integration - just upload endpoint at this moment.