Add handler for logging level requests in Server

Introduces an internal request handler for LoggingMessageNotification.SetLevelRequest in Server.connect to prevent client errors when copilot logging level requests are received. Returns EmptyRequestResult for these requests.

Author: JochenGuckSnk

kotlin-sdk-server/src/commonMain/kotlin/io/modelcontextprotocol/kotlin/sdk/server/Server.kt

@@ -3,6 +3,8 @@ package io.modelcontextprotocol.kotlin.sdk.server
 import io.github.oshai.kotlinlogging.KotlinLogging
 import io.modelcontextprotocol.kotlin.sdk.CallToolRequest
 import io.modelcontextprotocol.kotlin.sdk.CallToolResult
+import io.modelcontextprotocol.kotlin.sdk.EmptyRequestResult
+import io.modelcontextprotocol.kotlin.sdk.ErrorCode
 import io.modelcontextprotocol.kotlin.sdk.GetPromptRequest
 import io.modelcontextprotocol.kotlin.sdk.GetPromptResult
 import io.modelcontextprotocol.kotlin.sdk.Implementation
@@ -14,6 +16,7 @@ import io.modelcontextprotocol.kotlin.sdk.ListResourcesRequest
 import io.modelcontextprotocol.kotlin.sdk.ListResourcesResult
 import io.modelcontextprotocol.kotlin.sdk.ListToolsRequest
 import io.modelcontextprotocol.kotlin.sdk.ListToolsResult
+import io.modelcontextprotocol.kotlin.sdk.LoggingMessageNotification
 import io.modelcontextprotocol.kotlin.sdk.Method
 import io.modelcontextprotocol.kotlin.sdk.Prompt
 import io.modelcontextprotocol.kotlin.sdk.PromptArgument
@@ -112,6 +115,13 @@ public open class Server(
     public suspend fun connect(transport: Transport): ServerSession {
         val session = ServerSession(serverInfo, options, instructionsProvider?.invoke())
 
+        // Add internal logging level handler to prevent client errors of copilot logging level requests
+        session.setRequestHandler<LoggingMessageNotification.SetLevelRequest>(
+            Method.Defined.LoggingSetLevel,
+        ) { _, _ ->
+            EmptyRequestResult()
+        }
+
         // Internal handlers for tools
         if (options.capabilities.tools != null) {
             session.setRequestHandler<ListToolsRequest>(Method.Defined.ToolsList) { _, _ ->