Refactor: Add StartServer and ServeClient functions, improve palette unpacking with new helpers, and simplify the proxy example

modules/login_server.go

@@ -0,0 +1,16 @@
+package modules
+
+import (
+	"fmt"
+
+	"github.com/admin-else/strom"
+)
+
+type LoginServer struct {
+	*strom.Conn
+}
+
+func (l LoginServer) Default(event any) (err error) {
+	err = fmt.Errorf("unexpected event: %#v", event)
+	return
+}