chore: import upstream snapshot with attribution

examples/hello-world/main.go

@@ -0,0 +1,55 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"log"
+
+	"go-micro.dev/v6"
+)
+
+// Request and Response types
+type Request struct {
+	Name string `json:"name"`
+}
+
+type Response struct {
+	Message string `json:"message"`
+}
+
+// Greeter service handler
+type Greeter struct{}
+
+// Hello is the RPC method handler
+func (g *Greeter) Hello(ctx context.Context, req *Request, rsp *Response) error {
+	rsp.Message = "Hello " + req.Name
+	log.Printf("Received request: %s", req.Name)
+	return nil
+}
+
+func main() {
+	// Create a new service
+	service := micro.NewService("greeter", micro.Address(":8080"))
+
+	// Initialize the service
+	service.Init()
+
+	// Register the handler
+	if err := service.Handle(new(Greeter)); err != nil {
+		log.Fatal(err)
+	}
+
+	fmt.Println("Starting greeter service on :8080")
+	fmt.Println()
+	fmt.Println("Test with:")
+	fmt.Println("  curl -XPOST \\")
+	fmt.Println("    -H 'Content-Type: application/json' \\")
+	fmt.Println("    -H 'Micro-Endpoint: Greeter.Hello' \\")
+	fmt.Println("    -d '{\"name\": \"Alice\"}' \\")
+	fmt.Println("    http://localhost:8080")
+
+	// Run the service
+	if err := service.Run(); err != nil {
+		log.Fatal(err)
+	}
+}