Dashboard sparkline trends

curl --request GET \
  --url https://api.tedro.io/api/metrics/overview/trends \
  --header 'x-workspace-id: <api-key>' \
  --cookie better-auth.session_token=

{
  "range": "<string>",
  "trends": {
    "messages": [
      {
        "date": "<string>",
        "count": 123
      }
    ],
    "conversations": [
      {
        "date": "<string>",
        "count": 123
      }
    ],
    "runs": [
      {
        "date": "<string>",
        "count": 123
      }
    ],
    "contacts": [
      {
        "date": "<string>",
        "count": 123
      }
    ]
  },
  "comparison": {
    "messages": {
      "current": 123,
      "previous": 123,
      "changePercent": 123
    },
    "conversations": {
      "current": 123,
      "previous": 123,
      "changePercent": 123
    },
    "runs": {
      "current": 123,
      "previous": 123,
      "changePercent": 123
    },
    "contacts": {
      "current": 123,
      "previous": 123,
      "changePercent": 123
    }
  }
}