Improve semantic reconciliation retries

internal/framework/contracts/typed_pipeline.go

@@ -102,11 +102,12 @@ type TypedNormalizeResult[T any] struct {
 	ModelCandidate *ModelCandidate
 }
 
-// Normalize retry diagnostic limits bound module-provided values before the
-// framework persists them in debug artifacts.
+// Normalize retry limits bound module-provided control and diagnostic text
+// before the framework consumes or records it.
 const (
-	MaxNormalizeRetryReasonCodeBytes = 128
-	MaxNormalizeRetryMessageBytes    = 4096
+	MaxNormalizeRetryReasonCodeBytes         = 128
+	MaxNormalizeRetryMessageBytes            = 4096
+	MaxNormalizeRetryCorrectionGuidanceBytes = 4096
 )
 
 // NormalizeRetry asks the framework to retry normalization while retaining a
@@ -114,6 +115,7 @@ const (
 type NormalizeRetry struct {
 	ReasonCode          string
 	Message             string
+	CorrectionGuidance  string
 	FallbackDiagnostics []ProducerDiagnostic
 }