♻️ File organize system v2

DysonNetwork.Shared/Models/CloudFileObject.cs

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+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace DysonNetwork.Shared.Models;
+
+public class SnFileObject : ModelBase
+{
+    [MaxLength(32)] public string Id { get; set; }
+
+    public long Size { get; set; }
+
+    [Column(TypeName = "jsonb")] public Dictionary<string, object?>? Meta { get; set; }
+    [MaxLength(256)] public string? MimeType { get; set; }
+    [MaxLength(256)] public string? Hash { get; set; }
+    public bool HasCompression { get; set; } = false;
+    public bool HasThumbnail { get; set; } = false;
+
+    public List<SnFileReplica> FileReplicas { get; set; } = [];
+}
+
+public enum SnFileReplicaStatus
+{
+    Pending,
+    Uploading,
+    Available,
+    Failed,
+    Deprecated
+}
+
+public class SnFileReplica : ModelBase
+{
+    public Guid Id { get; set; }
+
+    [MaxLength(32)] public string ObjectId { get; set; }
+    public SnFileObject Object { get; set; } = null!;
+
+    public Guid PoolId { get; set; }
+    public FilePool Pool { get; set; } = null!;
+
+    [MaxLength(128)]
+    public string StorageId { get; set; } = null!;
+
+    public SnFileReplicaStatus Status { get; set; } = SnFileReplicaStatus.Pending;
+
+    public bool IsPrimary { get; set; } = false;
+}
+
+public enum SnFilePermissionType
+{
+    Someone,
+    Anyone
+}
+
+public enum SnFilePermissionLevel
+{
+    Read,
+    Write
+}
+
+public class SnFilePermission : ModelBase
+{
+    public Guid Id { get; set; }
+    public string FileId { get; set; } = null!;
+    public SnFilePermissionType SubjectType { get; set; } = SnFilePermissionType.Someone;
+    public string SubjectId { get; set; } = null!;
+    public SnFilePermissionLevel Permission { get; set; } = SnFilePermissionLevel.Read;
+}