feat(config): internal/config (load/save atomik + validasi) — wiring bahasa/suara/animasi + doctor baca config

internal/app/app.go

@@ -11,6 +11,7 @@ import (
 	"charm.land/lipgloss/v2"
 
 	"gitea.oxpoe.qzz.io/oxpoe/tia-love/internal/audio"
+	"gitea.oxpoe.qzz.io/oxpoe/tia-love/internal/config"
 	"gitea.oxpoe.qzz.io/oxpoe/tia-love/internal/docker"
 	"gitea.oxpoe.qzz.io/oxpoe/tia-love/internal/i18n"
 	"gitea.oxpoe.qzz.io/oxpoe/tia-love/internal/sysinfo"
@@ -64,12 +65,24 @@ type Model struct {
 }
 
 func New() Model {
+	cfg, cfgErr := config.Load()
+	// shortcut: TIA_LANG = override khusus dev/tes; sumber resmi bahasa
+	// tetap config (ui.language) — dihapus saat layar Pengaturan jadi.
+	if l := os.Getenv("TIA_LANG"); l != "" {
+		cfg.UI.Language = l
+	}
+	i18n.SetLang(cfg.UI.Language)
+
 	cl, err := docker.New()
 	host, _ := os.Hostname()
 	m := Model{
-		sound:     audio.New(audio.Options{Enabled: true, Volume: 70, MuteOnSSH: true}),
+		sound: audio.New(audio.Options{
+			Enabled:   cfg.UI.SoundEnabled,
+			Volume:    cfg.UI.SoundVolume,
+			MuteOnSSH: cfg.UI.SoundMuteOnSSH,
+		}),
 		tickID:    animation.NewID(),
-		animating: true,
+		animating: cfg.UI.AnimationEnabled,
 		toast:     components.NewToast(),
 		view:      viewHome,
 		hostname:  host,
@@ -77,6 +90,9 @@ func New() Model {
 		cl:        cl,
 		loading:   true,
 	}
+	if cfgErr != nil {
+		m.toast.Show(i18n.T("toast.configError"), cfgErr.Error())
+	}
 	if err != nil {
 		m.loadErr = err
 		m.engineErr = err
@@ -86,10 +102,14 @@ func New() Model {
 }
 
 func (m Model) Init() tea.Cmd {
-	if m.cl == nil {
-		return animation.Next(m.tickID)
+	var cmds []tea.Cmd
+	if m.animating {
+		cmds = append(cmds, animation.Next(m.tickID))
 	}
-	return tea.Batch(animation.Next(m.tickID), loadContainers(m.cl), loadInfo(m.cl))
+	if m.cl != nil {
+		cmds = append(cmds, loadContainers(m.cl), loadInfo(m.cl))
+	}
+	return tea.Batch(cmds...)
 }
 
 func loadContainers(cl *docker.Client) tea.Cmd {