feat: add server url parameter to cli

cmd/cli/main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"flag"
 	"fmt"
 	"os"
 	"time"
@@ -211,6 +212,11 @@ func fetchServices() tea.Msg {
 }
 
 func main() {
+	serverURL := flag.String("server", "http://localhost:8080", "URL of the EnvGuard server")
+	flag.Parse()
+
+	api.SetBaseURL(*serverURL)
+
 	user := os.Getenv("USER")
 	if user == "" {
 		user = "guest"