Init commit.

Add: the initial project structure.

Add: root command and a `version` command that print the version string of the app.

cmd/version.go

@@ -0,0 +1,27 @@
+/*
+Copyright © 2025 NAME HERE <EMAIL ADDRESS>
+
+*/
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+
+	"github.com/dhao2001/mygo.server/internal/app"
+)
+
+// versionCmd represents the version command
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: "Print version information",
+	Long: "Print app version to stdout.",
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Printf("v%s\n", app.Version)
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(versionCmd)
+}