feat: call godotenv

cmd/hspguard/main.go

@@ -9,9 +9,16 @@ import (
 	"gitea.local/admin/hspguard/internal/repository"
 	"gitea.local/admin/hspguard/internal/user"
 	"github.com/jackc/pgx/v5"
+	"github.com/joho/godotenv"
 )
 
 func main() {
+	err := godotenv.Load()
+	if err != nil {
+		log.Fatalln("ERR: Failed to load environment variables:", err)
+		return
+	}
+
 	ctx := context.Background()
 
 	conn, err := pgx.Connect(ctx, os.Getenv("DATABASE_URL"))