Resource capability (#5)

Prompt capability
Pagination support

src/mcpdotnet/Protocol/Messages/JsonRpcNotification.cs

@@ -0,0 +1,27 @@
+namespace McpDotNet.Protocol.Messages;
+
+using System.Text.Json.Serialization;
+
+/// <summary>
+/// A notification message in the JSON-RPC protocol (a request that doesn't expect a response).
+/// </summary>
+public record JsonRpcNotification : IJsonRpcMessage
+{
+    /// <summary>
+    /// JSON-RPC protocol version. Always "2.0".
+    /// </summary>
+    [JsonPropertyName("jsonrpc")]
+    public string JsonRpc { get; init; } = "2.0";
+
+    /// <summary>
+    /// Name of the notification method.
+    /// </summary>
+    [JsonPropertyName("method")]
+    public required string Method { get; init; }
+
+    /// <summary>
+    /// Optional parameters for the notification.
+    /// </summary>
+    [JsonPropertyName("params")]
+    public object? Params { get; init; }
+}