feat(kernel): cache LLM-emitted artifact JSON for transition conditions

core/kernel/src/main/kotlin/com/correx/core/kernel/orchestration/SessionOrchestrator.kt

@@ -366,6 +366,12 @@ abstract class SessionOrchestrator(
             is InferenceResult.Failed -> StageExecutionResult.Failure(inferenceResult.reason, retryable = true)
             is InferenceResult.Success -> {
                 if (isCancelled(sessionId)) return StageExecutionResult.Failure("CANCELLED", retryable = false)
+                // Capture the LLM-emitted artifact's JSON so transition conditions
+                // (e.g. ArtifactFieldEquals on a reviewer's verdict) can read it.
+                llmEmittedSlots.firstOrNull()?.let { slot ->
+                    artifactContentCache["${sessionId.value}:${slot.name.value}"] =
+                        inferenceResult.response.text
+                }
                 val validationCtx = ValidationContext(
                     graph = graph,
                     sessionState = session.state,