FlowAPI.Domain/Entities/SharedGraph.cs

using System;

namespace FlowAPI.Domain.Entities
{
    public class SharedGraph
    {
        public Guid Id { get; set; }
        public Guid GraphId { get; set; }
        public Guid SharedWithUserId { get; set; }
        public string Permission { get; set; } = "Read"; // "Read" or "Edit"
        public DateTime CreatedAt { get; set; } = DateTime.UtcNow;

        // Navigation properties
        public Graph Graph { get; set; } = null!;
        public User SharedWithUser { get; set; } = null!;
    }
}