refactor(agent): remove obsolete compatibility paths

node-agent/WxAgent.Core/RemoteNodeConfiguration.cs

@@ -37,26 +37,10 @@ public sealed record RemoteNodeConfiguration
             Audit = (Audit ?? []).TakeLast(1000).ToArray()
         };
     }
-
-    public RemoteNodeConfiguration WithAudit(string action)
-    {
-        RemoteAgentOptions.ValidateIdentifier(action, "action", 120);
-        return this with
-        {
-            Audit = (Audit ?? []).Append(new RemoteConfigurationAuditEntry
-            {
-                At = DateTimeOffset.UtcNow,
-                Action = action,
-                ConfigVersion = Reporting?.ConfigVersion ?? 0
-            }).TakeLast(1000).ToArray()
-        };
-    }
 }
 
 public static class RemoteNodeConfigurationStore
 {
-    private static readonly SemaphoreSlim Gate = new(1, 1);
-
     public static async Task<RemoteNodeConfiguration> LoadAsync(string path, CancellationToken cancellationToken = default)
     {
         try
@@ -82,40 +66,4 @@ public static class RemoteNodeConfigurationStore
             throw;
         }
     }
-
-    public static async Task SaveAsync(string path, RemoteNodeConfiguration configuration, CancellationToken cancellationToken = default)
-    {
-        var normalized = configuration.NormalizeAndValidate();
-        var destination = Path.GetFullPath(path);
-        var directory = Path.GetDirectoryName(destination) ?? AppContext.BaseDirectory;
-        Directory.CreateDirectory(directory);
-        await Gate.WaitAsync(cancellationToken);
-        try
-        {
-            var temporary = destination + ".tmp-" + Guid.NewGuid().ToString("N");
-            try
-            {
-                await using (var stream = new FileStream(temporary, FileMode.CreateNew, FileAccess.Write, FileShare.None, 4096, FileOptions.WriteThrough))
-                {
-                    await JsonSerializer.SerializeAsync(stream, normalized, RemoteJson.Options, cancellationToken);
-                    await stream.FlushAsync(cancellationToken);
-                }
-                if (!OperatingSystem.IsWindows())
-                {
-                    try { File.SetUnixFileMode(temporary, UnixFileMode.UserRead | UnixFileMode.UserWrite); }
-                    catch (PlatformNotSupportedException) { }
-                }
-                if (OperatingSystem.IsWindows() && File.Exists(destination)) File.Replace(temporary, destination, null);
-                else File.Move(temporary, destination, true);
-            }
-            finally
-            {
-                if (File.Exists(temporary)) File.Delete(temporary);
-            }
-        }
-        finally
-        {
-            Gate.Release();
-        }
-    }
 }