feat(inspect) tracker validation

[s0up4200]

Export to JSON:

go run . inspect Kyle.Original.Sin.S01.1080p.AMZN.WEB-DL.DDP5.1.H.264.torrent -T bhd -f json

{
  "name": "Kyles.Original.Sins.S01.1080p.AMZN.WEB-DL.DDP5.1.H.264",
  "infoHash": "3bc89c9c50be85225e439a931e17c9f5a89952b9",
  "size": 10860806205,
  "sizeFormatted": "10 GiB",
  "pieceLength": 8388608,
  "pieceLengthFormatted": "8.0 MiB",
  "numPieces": 1295,
  "isPrivate": true,
  "source": "PTP",
  "createdBy": "mkbrr/v1.7.0-6-gdc04315 (https://github.com/autobrr/mkbrr)",
  "files": [
    {
      "path": "Kyle.Original.Sin.S01E01E02.Business.and.Pleasure.1080p.AMZN.WEB-DL.DDP5.1.H.264.mkv",
      "length": 3587677166,
      "lengthFormatted": "3.3 GiB"
    },
    {
      "path": "Kyle.Original.Sin.S01E03.Code.Blues.1080p.AMZN.WEB-DL.DDP5.1.H.264.mkv",
      "length": 3570229558,
      "lengthFormatted": "3.3 GiB"
    },
    {
      "path": "Kyle.Original.Sin.S01E05.Blood.Drive.1080p.AMZN.WEB-DL.DDP5.1.H.264.mkv",
      "length": 3702899481,
      "lengthFormatted": "3.4 GiB"
    }
  ],
  "validationResults": [
    {
      "rule": "Announce URL",
      "status": "FAIL",
      "message": "Torrent does not contain an announce URL matching https://tracker.beyond-hd.me:2053/... or its known aliases."
    },
    {
      "rule": "Private Flag",
      "status": "PASS",
      "message": "Torrent is marked as private."
    },
    {
      "rule": "Piece Size Limit",
      "status": "PASS",
      "message": "Piece size 8 MiB is within tracker limit of 16 MiB."
    },
    {
      "rule": "Torrent File Size",
      "status": "INFO",
      "message": "No specific torrent file size limit known for this tracker. Current size: 25.9 KiB."
    }
  ]
}