Moving the copilot-sdk cookbook content in here

cookbook/copilot-sdk/go/recipe/error-handling.go

@@ -0,0 +1,44 @@
+package main
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/github/copilot-sdk/go"
+)
+
+func main() {
+	client := copilot.NewClient()
+
+	if err := client.Start(); err != nil {
+		log.Fatalf("Failed to start client: %v", err)
+	}
+	defer func() {
+		if err := client.Stop(); err != nil {
+			log.Printf("Error stopping client: %v", err)
+		}
+	}()
+
+	session, err := client.CreateSession(copilot.SessionConfig{
+		Model: "gpt-5",
+	})
+	if err != nil {
+		log.Fatalf("Failed to create session: %v", err)
+	}
+	defer session.Destroy()
+
+	responseChan := make(chan string, 1)
+	session.On(func(event copilot.Event) {
+		if msg, ok := event.(copilot.AssistantMessageEvent); ok {
+			responseChan <- msg.Data.Content
+		}
+	})
+
+	if err := session.Send(copilot.MessageOptions{Prompt: "Hello!"}); err != nil {
+		log.Printf("Failed to send message: %v", err)
+		return
+	}
+
+	response := <-responseChan
+	fmt.Println(response)
+}