Request - Change `dataType` into controlled vocabulary and array

[edsu7]

Below is an example of a schema

{
      "name": "sequenceExperiment",
      "version": 2,
      "createdAt": "2026-03-10T20:12:09.922808",
      "options": {
        "fileTypes": [
          "BAM",
          "FASTQ"
        ],
        "externalValidations": [...]
      },
      "schema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "id": "analysisPayload",
        "type": "object",
        "definitions": {
          "common": {...},
          "file": {
            "fileType": {
              "type": "string"
            },
            "fileData": {
              "type": "object",
              "required": [
                "dataType",
                "fileName",
                "fileSize",
                "fileType",
                "fileAccess",
                "fileMd5sum"
              ],
              "properties": {
                "dataType": {
                  "type": "string"
                },
                "fileName": {...},
                "fileSize": {...},
                "fileAccess": {...},
                "fileType": {...},
                "fileMd5sum": {...},
                "info": {...}
              }
            }
          },
          "analysisType": {...}
}

where dataType is defined as a string. We'd like to :
A) Modify dataType from string to an array of strings
B) Allow for dynamic schema defined list of enum values

A) is to account instances where files contain multiple file types. For example a single VCF could contain SNVs and InDels type.

B) a controlled list is preferable but recognize the list of datatypes could grow. An implementation similar to fileTypes where dataTypes can be updated via options would be good.

[edsu7]

Alternative, track multi-dataType in another field