chore(clean up): remove unused imports, unnecessary object impls, concurrency/coroutine issues, trailing commas, etc.

testing/contracts/src/test/kotlin/com/correx/testing/contracts/model/inference/DefaultInferenceRouterTest.kt

@@ -31,20 +31,22 @@ class DefaultInferenceRouterTest {
             override fun register(provider: InferenceProvider) = Unit
             override fun resolve(capability: ModelCapability) =
                 providers.filter { p -> p.capabilities().any { it.capability == capability } }
+
             override fun listAll() = providers.toList()
             override suspend fun healthCheckAll() = providers.associate { it.id to ProviderHealth.Healthy }
         }
 
     private fun firstStrategy(): RoutingStrategy =
-        object : RoutingStrategy {
-            override fun select(candidates: List<InferenceProvider>, requiredCapabilities: Set<ModelCapability>) =
-                candidates.firstOrNull() ?: throw NoEligibleProviderException(StageId("?"), emptySet())
+        RoutingStrategy { candidates, _ ->
+            candidates.firstOrNull() ?: throw NoEligibleProviderException(StageId("?"), emptySet())
         }
 
     private fun throwingStrategy(): RoutingStrategy =
-        object : RoutingStrategy {
-            override fun select(candidates: List<InferenceProvider>, requiredCapabilities: Set<ModelCapability>) =
-                throw NoEligibleProviderException(StageId("?"), requiredCapabilities)
+        RoutingStrategy { _, requiredCapabilities ->
+            throw NoEligibleProviderException(
+                StageId("?"),
+                requiredCapabilities,
+            )
         }
 
     // ── capability matching ───────────────────────────────────────────────────
@@ -60,14 +62,9 @@ class DefaultInferenceRouterTest {
     fun `deduplicates providers that satisfy multiple required capabilities`(): Unit = runBlocking {
         val p = provider("a", ModelCapability.General, ModelCapability.Coding)
         val selected = mutableListOf<InferenceProvider>()
-        val captureStrategy = object : RoutingStrategy {
-            override fun select(
-                candidates: List<InferenceProvider>,
-                requiredCapabilities: Set<ModelCapability>,
-            ): InferenceProvider {
-                selected.addAll(candidates)
-                return candidates.first()
-            }
+        val captureStrategy = RoutingStrategy { candidates, _ ->
+            selected.addAll(candidates)
+            candidates.first()
         }
         val router = DefaultInferenceRouter(
             registryOf(p),

testing/contracts/src/testFixtures/kotlin/com/correx/testing/contracts/fixtures/events/store/EventStoreContractTest.kt

@@ -7,7 +7,6 @@ import com.correx.core.events.types.SessionId
 import com.correx.testing.contracts.utils.ConcurrencyRunner
 import com.correx.testing.fixtures.EventFixtures
 import kotlinx.coroutines.delay
-import kotlinx.coroutines.flow.collect
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.runBlocking
 import kotlinx.coroutines.yield
@@ -39,7 +38,7 @@ abstract class EventStoreContractTest {
 
         store.append(e)
         assertThrows<Exception> {
-            runBlocking { store.append(e) }
+            store.append(e)
         }
         Assertions.assertEquals(1, store.read(SessionId("s1")).size)
     }
@@ -75,7 +74,7 @@ abstract class EventStoreContractTest {
         ConcurrencyRunner.run(20, 100) { t, i ->
             runBlocking {
                 store.append(
-                    EventFixtures.newEvent(EventId("e-$i-$t"), SessionId("s1"))
+                    EventFixtures.newEvent(EventId("e-$i-$t"), SessionId("s1")),
                 )
             }
         }
@@ -152,7 +151,7 @@ abstract class EventStoreContractTest {
                     store.append(EventFixtures.newEvent(EventId("a-$t-$i"), SessionId("s1")))
                 } else {
                     store.appendAll(
-                        listOf(EventFixtures.newEvent(EventId("b-$t-$i"), SessionId("s1")))
+                        listOf(EventFixtures.newEvent(EventId("b-$t-$i"), SessionId("s1"))),
                     )
                 }
             }