fix(09): WR-16 resolve model columns through embedded structs and explicit column tags

modules/cabana/crud.go

@@ -785,21 +785,9 @@ func projectRecord(cc *CompiledController, model any) map[string]any {
 }
 
 func modelColumns(model any) map[string]struct{} {
-	t := reflect.TypeOf(model)
-	for t != nil && t.Kind() == reflect.Pointer {
-		t = t.Elem()
-	}
 	cols := map[string]struct{}{}
-	if t == nil || t.Kind() != reflect.Struct {
-		return cols
-	}
-	for i := 0; i < t.NumField(); i++ {
-		field := t.Field(i)
-		if field.PkgPath != "" {
-			continue
-		}
-		name := gormColumn(field)
-		if name != "" {
+	for _, mf := range modelFields(reflect.TypeOf(model)) {
+		if name := gormColumn(mf.Field); name != "" {
 			cols[name] = struct{}{}
 		}
 	}
@@ -873,9 +861,9 @@ func castPK(model any, n uint) any {
 	if t == nil || t.Kind() != reflect.Struct {
 		return n
 	}
-	for i := 0; i < t.NumField(); i++ {
-		field := t.Field(i)
-		if !strings.Contains(field.Tag.Get("gorm"), "primaryKey") {
+	for _, mf := range modelFields(t) {
+		field := mf.Field
+		if !hasPrimaryKeyTag(field) {
 			continue
 		}
 		switch field.Type.Kind() {