Can't handle naval units in a mission

[skeletonwburg]

Errors when naval units are in a mission:

  unit: {
    id: 39,
    name: 'Naval-1-1',
    coalition: 3,
    type: 'Forrestal',
    position: { lat: 34.907013766222875, lon: 33.75533160822897 },
    groupName: 'Naval-1',
    numberInGroup: 1,
    speed: 1.3594386535012912,
    heading: 326,
    category: 4
  }
}
Error: expected alt to be a number
    at positionLLFrom (F:\Documents\Git\yet-another-dcs-server\src\common.ts:179:11)
    at unitFrom (F:\Documents\Git\yet-another-dcs-server\src\unit.ts:253:29)
    at F:\Documents\Git\yet-another-dcs-server\src\group.ts:45:50
    at Array.map (<anonymous>)
    at Object.callback (F:\Documents\Git\yet-another-dcs-server\src\group.ts:45:30)
    at Object.onReceiveStatus (F:\Documents\Git\yet-another-dcs-server\node_modules\@grpc\grpc-js\src\client.ts:348:28)
    at Object.onReceiveStatus (F:\Documents\Git\yet-another-dcs-server\node_modules\@grpc\grpc-js\src\client-interceptors.ts:462:34)
    at Object.onReceiveStatus (F:\Documents\Git\yet-another-dcs-server\node_modules\@grpc\grpc-js\src\client-interceptors.ts:424:48)
    at F:\Documents\Git\yet-another-dcs-server\node_modules\@grpc\grpc-js\src\call-stream.ts:330:24
    at processTicksAndRejections (node:internal/process/task_queues:77:11)```