Add feedback-aware correction contracts

internal/modules/integration/dnd_combat_runner_test.go

@@ -375,8 +375,12 @@ func (client *fakeCombatLLMClient) CompleteStructured(ctx context.Context, req c
 	if err := ctx.Err(); err != nil {
 		return contracts.StructuredCompletionResponse{}, err
 	}
+	snapshot, err := contracts.CloneStructuredCompletionRequest(req)
+	if err != nil {
+		return contracts.StructuredCompletionResponse{}, fmt.Errorf("clone fake request: %w", err)
+	}
 	client.mu.Lock()
-	client.requests = append(client.requests, req)
+	client.requests = append(client.requests, snapshot)
 	index := len(client.requests) - 1
 	client.mu.Unlock()
 	if index >= len(client.responses) {

internal/modules/integration/dnd_npc_registry_runner_test.go

@@ -240,7 +240,11 @@ type fakeNPCProductionLLMClient struct {
 }
 
 func (client *fakeNPCProductionLLMClient) CompleteStructured(_ context.Context, req contracts.StructuredCompletionRequest, out any) (contracts.StructuredCompletionResponse, error) {
-	client.requests = append(client.requests, req)
+	snapshot, err := contracts.CloneStructuredCompletionRequest(req)
+	if err != nil {
+		return contracts.StructuredCompletionResponse{}, fmt.Errorf("clone fake request: %w", err)
+	}
+	client.requests = append(client.requests, snapshot)
 	var content []byte
 	switch req.PromptID {
 	case npcregistry.PromptID:

internal/modules/integration/dnd_spells_helpers_test.go

@@ -71,6 +71,11 @@ func responseSourceRefs(startUnitID int, endUnitID int) []spellSourceRefResponse
 
 func cloneStructuredCompletionRequest(req contracts.StructuredCompletionRequest) contracts.StructuredCompletionRequest {
 	req.Inputs = req.Inputs.Clone()
+	correction, err := contracts.CloneSemanticCorrection(req.Correction)
+	if err != nil {
+		panic(err)
+	}
+	req.Correction = correction
 	if len(req.Vars) == 0 {
 		req.Vars = nil
 		return req