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

internal/framework/validators/deterministic.go

@@ -4,6 +4,9 @@ import (
 	"context"
 	"fmt"
 	"strings"
+
+	"gitea.maximumdirect.net/eric/audita/internal/core/schema"
+	"gitea.maximumdirect.net/eric/audita/internal/framework/proposals"
 )
 
 type ConfidenceThresholdValidator struct{}
@@ -62,11 +65,26 @@ type NonEmptyCorrectionValidator struct{}
 func (v NonEmptyCorrectionValidator) Name() string { return "non_empty_corrected_text" }
 
 func (v NonEmptyCorrectionValidator) Validate(_ context.Context, req Request) (Result, error) {
+	segments := make(map[int]string)
+	if req.WorkingTranscript != nil {
+		for _, seg := range req.WorkingTranscript.Segments {
+			segments[seg.ID] = seg.Text
+		}
+	}
+
 	decisions := make([]Decision, 0, len(req.CandidateProposal))
 	for _, c := range req.CandidateProposal {
-		if strings.TrimSpace(c.CorrectedText) == "" {
-			decisions = append(decisions, rejection(c.ProposalIndex, ReasonEmptyCorrectedText, "corrected_text must not be empty"))
-			continue
+		segmentText, ok := segments[c.TargetSegmentID]
+		if ok {
+			preview := proposals.PreviewProposalForSegment(
+				&schema.Segment{ID: c.TargetSegmentID, Text: segmentText},
+				c.CorrectionProposal,
+				req.ReplacementPolicy,
+			)
+			if preview.Applicable && strings.TrimSpace(preview.CorrectedSegmentText) == "" {
+				decisions = append(decisions, rejection(c.ProposalIndex, ReasonEmptyCorrectedText, "corrected segment text must not be empty"))
+				continue
+			}
 		}
 		decisions = append(decisions, approval(c.ProposalIndex))
 	}