Prevent Object Nesting in Agent Registration

[vikman90]

Parent Issue: #241

Currently, the body of a registration request is:

{
    "agent": {
        "groups": [],
        "host": {
            "architecture": "x86_64",
            "hostname": "Rocket",
            "ip": [
                "172.28.54.98",
                "fe80::215:5dff:feb2:94ca"
            ],
            "os": {
                "name": "Ubuntu",
                "platform": "Linux"
            }
        },
        "id": "7b565a01-8df4-4943-9fb1-6d347ab21853",
        "key": "IGnRhLW9pbhecU2PyMo9hyTbzAUgPaqj",
        "name": "dummy",
        "type": "Endpoint",
        "version": "5.0.0"
    }
}

We should not nest the fields into agent.

Expected request body

{
    "groups": [],
    "host": {
        "architecture": "x86_64",
        "hostname": "Rocket",
        "ip": [
            "172.28.54.98",
            "fe80::215:5dff:feb2:94ca"
        ],
        "os": {
            "name": "Ubuntu",
            "platform": "Linux"
        }
    },
    "id": "7b565a01-8df4-4943-9fb1-6d347ab21853",
    "key": "IGnRhLW9pbhecU2PyMo9hyTbzAUgPaqj",
    "name": "dummy",
    "type": "Endpoint",
    "version": "5.0.0"
}

[vikman90]

Work update

• Prevent Object Nesting in Agent Registration #312