♻️ Finish centerlizing the data models

DysonNetwork.Shared/Models/Permission.cs

@@ -4,6 +4,7 @@ using System.Text.Json;
 using System.Text.Json.Serialization;
 using Microsoft.EntityFrameworkCore;
 using NodaTime;
+using NodaTime.Serialization.Protobuf;
 
 namespace DysonNetwork.Shared.Models;
 
@@ -32,6 +33,21 @@ public class SnPermissionNode : ModelBase, IDisposable
     public Guid? GroupId { get; set; } = null;
     [JsonIgnore] public SnPermissionGroup? Group { get; set; } = null;
 
+    public Proto.PermissionNode ToProtoValue()
+    {
+        return new Proto.PermissionNode
+        {
+            Id = Id.ToString(),
+            Actor = Actor,
+            Area = Area,
+            Key = Key,
+            Value = Google.Protobuf.WellKnownTypes.Value.Parser.ParseJson(Value.RootElement.GetRawText()),
+            ExpiredAt = ExpiredAt?.ToTimestamp(),
+            AffectedAt = AffectedAt?.ToTimestamp(),
+            GroupId = GroupId?.ToString() ?? string.Empty
+        };
+    }
+
     public void Dispose()
     {
         Value.Dispose();