feat: add phase five operations foundation

Tiku.Api/Contracts/BackofficeDtos.cs

@@ -0,0 +1,41 @@
+using System.Text.Json;
+using Tiku.Application.Backoffice;
+using Tiku.Domain.Operations;
+
+namespace Tiku.Api.Contracts;
+
+public sealed class UpsertBackofficeRoleDto
+{
+    public Guid? Id { get; set; }
+    public string Code { get; set; } = string.Empty;
+    public string Name { get; set; } = string.Empty;
+    public BackendRoleStatus Status { get; set; } = BackendRoleStatus.Active;
+    public string? Description { get; set; }
+    public JsonElement? DataScope { get; set; }
+
+    public UpsertBackofficeRoleCommand ToCommand()
+    {
+        return new UpsertBackofficeRoleCommand(Id, Code, Name, Status, Description, DataScope);
+    }
+}
+
+public sealed class ReplaceRoleBindingsDto
+{
+    public IReadOnlyCollection<string> PermissionCodes { get; set; } = [];
+    public IReadOnlyCollection<string> MenuCodes { get; set; } = [];
+
+    public ReplaceRoleBindingsCommand ToCommand(Guid roleId)
+    {
+        return new ReplaceRoleBindingsCommand(roleId, PermissionCodes, MenuCodes);
+    }
+}
+
+public sealed class ReplaceUserRolesDto
+{
+    public IReadOnlyCollection<Guid> RoleIds { get; set; } = [];
+
+    public ReplaceUserRolesCommand ToCommand(Guid userId)
+    {
+        return new ReplaceUserRolesCommand(userId, RoleIds);
+    }
+}