feat(14.2.1-05): hydrate ML create/GET/save through TranslatedExact

Form schema meta lists enabled locales, Show/save expand mltext maps
without D-11 fallback, and the SPA seeds and adopt-merges every locale.

Co-authored-by: Cursor <cursoragent@cursor.com>

modules/cabana/ml_smoke_test.go

@@ -95,6 +95,25 @@ func (w *recordingWriter) WriteTranslated(_ context.Context, _ *gorm.DB, model a
 	return nil
 }
 
+func (w *recordingWriter) TranslatedExact(_ context.Context, _ *gorm.DB, model any, field, locale string) (string, bool, error) {
+	if locale == w.defaultLocale {
+		post, _ := model.(*mlPost)
+		if post == nil {
+			return "", false, nil
+		}
+		return post.Title, true, nil
+	}
+	if w.attrs == nil {
+		return "", false, nil
+	}
+	vals := w.attrs[locale]
+	if vals == nil {
+		return "", false, nil
+	}
+	text, ok := vals[field]
+	return text, ok, nil
+}
+
 func mlFS() fstest.MapFS {
 	return fstest.MapFS{
 		"controllers/posts/config_list.yaml": &fstest.MapFile{Data: []byte(mlListConfig)},
@@ -181,8 +200,13 @@ func TestMLNestedSaveSmoke(t *testing.T) {
 		if err != nil {
 			t.Fatalf("create: %v", err)
 		}
-		if rec["title"] != "Hello" {
-			t.Fatalf("projected title = %#v, want Hello", rec["title"])
+		if rec["title"] != nil {
+			got, ok := rec["title"].(map[string]string)
+			if !ok || got["en"] != "Hello" || got["pl"] != "Witaj" {
+				t.Fatalf("projected title = %#v, want hydrated en+pl map", rec["title"])
+			}
+		} else {
+			t.Fatalf("projected title = %#v, want hydrated en+pl map", rec["title"])
 		}
 		var row mlPost
 		if err := db.First(&row).Error; err != nil {