feat: the node itself requires an owner passkey (shared by agent and probe) and reports it; the panel derives the account and passkey it is bound to [CI]

backend/src/MoShiro.Backend.Api/Contracts/ApiJsonContext.cs

@@ -48,6 +48,7 @@ namespace MoShiro.Backend.Api;
 [JsonSerializable(typeof(AboutDto))]
 [JsonSerializable(typeof(NodeBuildDto))]
 [JsonSerializable(typeof(NodeBinaryDto))]
+[JsonSerializable(typeof(NodeOwnerDto))]
 [JsonSerializable(typeof(BuildInfoDto))]
 [JsonSerializable(typeof(BackendUpdateDto))]
 [JsonSerializable(typeof(ConfirmBackendUpdateRequest))]