[agent-automation] Add hello world Go program and Makefile

Makefile

@@ -0,0 +1,10 @@
+.PHONY: build run clean
+
+build:
+	go build -o hello main.go
+
+run: build
+	./hello
+
+clean:
+	rm -f hello

main.go

@@ -0,0 +1,7 @@
+package main
+
+import "fmt"
+
+func main() {
+	fmt.Println("Hello, World!")
+}