feat: update protocol version handling

- add ProtocolVersion variable to metadata package
- don't set `ServerMessage.ProtocolVersion` in `main`
- update `ServerMessage` default to include ProtocolVersion

🤖

cmd/server/main.go

@@ -10,7 +10,6 @@ import (
 	"github.com/charmbracelet/log"
 	"net/http"
 	"os"
-	"strings"
 )
 
 func Start() {
@@ -21,10 +20,9 @@ func Start() {
 	showVersionFlag := flag.Bool("version", false, "Output version")
 	flag.Parse()
 
-	shared.Message.ProtocolVersion = strings.Split(metadata.GoTomatoVersion, ".")[0]
 	if *showVersionFlag {
 		fmt.Printf("App-Version: %s\n", metadata.GoTomatoVersion)
-		fmt.Printf("Protocol-Version: %s\n", shared.Message.ProtocolVersion)
+		fmt.Printf("Protocol-Version: %s\n", metadata.ProtocolVersion)
 		os.Exit(0)
 	}