Retain repair diagnostics and correction lineage

internal/framework/structuredoutput/call.go

@@ -19,6 +19,8 @@ type DiagnosticContext struct {
 	SectionIndex   *int    `json:"section_index,omitempty"`
 	BatchIndex     *int    `json:"batch_index,omitempty"`
 	ValidatorName  string  `json:"validator_name,omitempty"`
+	ProposalIndex  *int    `json:"proposal_index,omitempty"`
+	RepairAttempt  *int    `json:"repair_attempt,omitempty"`
 }
 
 // Request names an embedded prompt and response schema. Profile selection and