Hardened the proposal modules to skip malformed proposals rather than hard failing the entire run

internal/framework/validators/validators_test.go

@@ -90,10 +90,14 @@ func TestOriginalTextPresenceValidator(t *testing.T) {
 }
 
 func TestNonEmptyCorrectionValidator(t *testing.T) {
-	req := Request{CandidateProposal: []proposals.EnrichedCorrectionProposal{
+	req := Request{
+		WorkingTranscript: &schema.Transcript{Segments: []schema.Segment{{ID: 1, Text: "hello"}}},
+		ReplacementPolicy: proposals.ReplacementPolicyRequireUnique,
+		CandidateProposal: []proposals.EnrichedCorrectionProposal{
 		mkCandidate(0, 1, "hello", "hi", 0.9),
 		mkCandidate(1, 1, "hello", "   ", 0.9),
-	}}
+		},
+	}
 	res, err := (NonEmptyCorrectionValidator{}).Validate(context.Background(), req)
 	if err != nil {
 		t.Fatalf("Validate error: %v", err)
@@ -154,6 +158,8 @@ func TestStableReasonCodes(t *testing.T) {
 		ReasonEmptyCorrectedText,
 		ReasonNoEffect,
 		ReasonProtectedGlossaryTerm,
+		ReasonValidatorMalformed,
+		ReasonValidatorMissing,
 	}
 	for _, code := range codes {
 		if strings.TrimSpace(code) == "" {