feat(events): RefinementIterationEvent + orchestration state counter

testing/replay/build.gradle

@@ -7,6 +7,7 @@ plugins {
 dependencies {
     testImplementation(project(":core:events"))
     testImplementation(project(":core:journal"))
+    testImplementation(project(":core:kernel"))
     testImplementation(project(":core:sessions"))
     testImplementation(project(":core:transitions"))
     testImplementation(project(":core:validation"))

testing/replay/src/test/kotlin/RefinementIterationReplayTest.kt

@@ -0,0 +1,35 @@
+import com.correx.core.events.events.EventMetadata
+import com.correx.core.events.events.NewEvent
+import com.correx.core.events.events.RefinementIterationEvent
+import com.correx.core.events.types.EventId
+import com.correx.core.events.types.SessionId
+import com.correx.core.kernel.orchestration.DefaultOrchestrationReducer
+import com.correx.core.kernel.orchestration.OrchestrationProjector
+import com.correx.core.sessions.projections.replay.DefaultEventReplayer
+import com.correx.infrastructure.persistence.InMemoryEventStore
+import kotlinx.coroutines.runBlocking
+import kotlinx.datetime.Clock
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Test
+
+class RefinementIterationReplayTest {
+
+    private fun meta(sessionId: SessionId, id: String) =
+        EventMetadata(EventId(id), sessionId, Clock.System.now(), 1, null, null)
+
+    @Test
+    fun `refinement iteration counter tracks last value per cycle`(): Unit = runBlocking {
+        val sessionId = SessionId("s")
+        val store = InMemoryEventStore()
+        store.append(NewEvent(meta(sessionId, "i1"), RefinementIterationEvent(sessionId, "impl->review", 1, 3)))
+        store.append(NewEvent(meta(sessionId, "i2"), RefinementIterationEvent(sessionId, "impl->review", 2, 3)))
+
+        val replayer = DefaultEventReplayer(
+            store,
+            OrchestrationProjector(DefaultOrchestrationReducer()),
+        )
+        val state = replayer.rebuild(sessionId)
+
+        assertEquals(2, state.refinementIterations["impl->review"])
+    }
+}