refactor: simplify config into a single load/save with defaults resolved at load time

src/cmd/root.go

@@ -12,12 +12,12 @@ import (
 )
 
 func getNodeService() (service.NodeService, error) {
-	user := cfg.GetUser()
+	user := cfg.User
 	if user == "" {
 		return nil, fmt.Errorf("no user configured: run 'ax user set <username>' first")
 	}
-	if rc, ok := cfg.GetRemoteConfig(); ok {
-		base := fmt.Sprintf("http://%s:%d", rc.Host, rc.Port)
+	if cfg.Remote.Host != "" {
+		base := fmt.Sprintf("http://%s:%d", cfg.Remote.Host, cfg.Remote.Port)
 		return service.NewRemoteNodeService(base, user), nil
 	}
 	st, err := store.FindAndOpenSQLiteStore()
@@ -33,7 +33,7 @@ var rootCmd = &cobra.Command{Use: "ax", Short: "The axolotl issue tracker"}
 
 func Execute() {
 	var err error
-	cfg, err = store.LoadConfigFile()
+	cfg, err = store.LoadConfig()
 	if err != nil {
 		fmt.Fprintln(os.Stderr, "failed to load config:", err)
 		os.Exit(1)
@@ -50,7 +50,7 @@ func init() {
 
 func RegisterAliasCommands() {
 	rootCmd.AddGroup(&cobra.Group{ID: "aliases", Title: "Aliases:"})
-	aliases, _ := cfg.ListAliases()
+	aliases := cfg.Aliases
 	for _, a := range aliases {
 		rootCmd.AddCommand(&cobra.Command{
 			Use:                a.Name,
@@ -59,7 +59,7 @@ func RegisterAliasCommands() {
 			DisableFlagParsing: true,
 			Run: func(ccmd *cobra.Command, args []string) {
 				acmd := a.Command
-				acmd = strings.ReplaceAll(acmd, "$me", cfg.GetUser())
+				acmd = strings.ReplaceAll(acmd, "$me", cfg.User)
 				parts := strings.Fields(acmd)
 				var expanded []string
 				usedArgs := make([]bool, len(args))