add nwc and bump nostr

Plugins/BTCPayServer.Plugins.NIP05/NostrClientWrapper.cs

@@ -0,0 +1,48 @@
+using System;
+using System.Threading;
+using NNostr.Client;
+
+namespace BTCPayServer.Plugins.NIP05;
+
+public class NostrClientWrapper : IDisposable
+{
+    public INostrClient Client { get; private set; }
+    private int _usageCount = 0;
+    private bool _isDisposed = false;
+    private DateTimeOffset _lastUsed;
+
+    public NostrClientWrapper(INostrClient client)
+    {
+        Client = client;
+        _lastUsed = DateTimeOffset.UtcNow;
+    }
+
+    public void IncrementUsage()
+    {
+        _lastUsed = DateTimeOffset.UtcNow;
+        Interlocked.Increment(ref _usageCount);
+    }
+
+    public void DecrementUsage()
+    {
+        _lastUsed = DateTimeOffset.UtcNow;
+        if (Interlocked.Decrement(ref _usageCount) == 0 && IsExpired())
+        {
+            Dispose();
+        }
+    }
+
+    public bool IsExpired()
+    {
+        return DateTimeOffset.UtcNow - _lastUsed > TimeSpan.FromMinutes(5);
+    }
+
+    public void Dispose()
+    {
+        if (!_isDisposed)
+        {
+            Client.Dispose();
+            _isDisposed = true;
+        }
+    }
+}