Get Health Dashboard

{
    "system_status": {
        "overall_status": "healthy",
        "total_providers": 0,
        "healthy_providers": 0,
        "degraded_providers": 0,
        "unhealthy_providers": 0,
        "total_models": 0,
        "healthy_models": 0,
        "degraded_models": 0,
        "unhealthy_models": 0,
        "system_uptime": 0,
        "last_updated": "2019-08-24T14:15:22Z"
    },
    "providers": [
        {
            "provider": "string",
            "gateway": "string",
            "status": "string",
            "status_color": "string",
            "models_count": 0,
            "healthy_count": 0,
            "uptime": "string",
            "avg_response_time": "string"
        }
    ],
    "models": [
        {
            "model_id": "string",
            "name": "string",
            "provider": "string",
            "status": "string",
            "status_color": "string",
            "response_time": "string",
            "uptime": "string",
            "last_checked": "string"
        }
    ],
    "uptime_metrics": {
        "status": "string",
        "uptime_percentage": 0,
        "response_time_avg": 0,
        "last_incident": "2019-08-24T14:15:22Z",
        "total_requests": 0,
        "successful_requests": 0,
        "failed_requests": 0,
        "error_rate": 0,
        "last_updated": "2019-08-24T14:15:22Z"
    },
    "last_updated": "2019-08-24T14:15:22Z",
    "monitoring_active": false
}