Refactor validators into built-in registry chains

internal/modules/homophones/module_test.go

@@ -148,9 +148,9 @@ func TestHomophonesModuleValidatorChain(t *testing.T) {
 		"no_effect",
 		"original_text_presence",
 		"confidence_threshold",
-		"protected_glossary_terms",
-		"non_empty_correction",
-		"spoken_form_plausibility_review",
+		"protected_terms",
+		"non_empty_corrected_text",
+		"spoken_form_plausibility",
 		"meaning_reversal_review",
 	}
 	if strings.Join(got, ",") != strings.Join(want, ",") {
@@ -276,13 +276,13 @@ func TestHomophonesProtectedGlossaryTermBehaviorRejectsUnsafeCorrection(t *testi
 	}
 	var protectedValidator contracts.Validator
 	for _, v := range module.Validators() {
-		if v.Name() == "protected_glossary_terms" {
+		if v.Name() == "protected_terms" {
 			protectedValidator = v
 			break
 		}
 	}
 	if protectedValidator == nil {
-		t.Fatal("expected protected_glossary_terms validator")
+		t.Fatal("expected protected_terms validator")
 	}
 
 	working := &schema.Transcript{Segments: []schema.Segment{