feat(i18n): katalog id/en — semua string UI via T()/Tf(), fallback en, TIA_LANG sementara + e2e English

e2e/e2e_test.go

@@ -58,12 +58,17 @@ type tui struct {
 	waited bool
 }
 
-func startTUI(t *testing.T) *tui {
+func startTUI(t *testing.T) *tui { return startTUIEnv(t) }
+
+func startTUIEnv(t *testing.T, env ...string) *tui {
 	t.Helper()
 	if runtime.GOOS == "windows" {
 		t.Skip("e2e pty tidak didukung di Windows")
 	}
 	cmd := exec.Command(binPath)
+	if len(env) > 0 {
+		cmd.Env = append(os.Environ(), env...)
+	}
 	ptmx, err := pty.StartWithSize(cmd, &pty.Winsize{Rows: rows, Cols: cols})
 	if err != nil {
 		t.Fatalf("start pty: %v", err)
@@ -211,6 +216,18 @@ func TestDoctorCommand(t *testing.T) {
 	}
 }
 
+func TestEnglishLanguage(t *testing.T) {
+	u := startTUIEnv(t, "TIA_LANG=en")
+	u.waitContains("·  home", 5*time.Second)
+	u.waitContains("Clock", 5*time.Second)
+	u.send("1")
+	u.waitContains("·  containers", 3*time.Second)
+	u.send("q")
+	if code := u.waitExit(5 * time.Second); code != 0 {
+		t.Fatalf("exit code %d, mau 0", code)
+	}
+}
+
 func TestDashboardNavigation(t *testing.T) {
 	u := startTUI(t)
 	u.waitContains("beranda", 5*time.Second)