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

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

@@ -142,10 +142,7 @@ abstract class SessionOrchestrator(
             ?.let { path ->
                 runCatching { promptResolver.resolve(path) }
                     .onFailure {
-                        log.error(
-                            "[SessionOrchestrator] stage=${stageId.value}: " +
-                                    "failed to load prompt '$path': ${it.message}",
-                        )
+                        log.error(error(stageId, path, it))
                     }
                     .getOrNull()
             }
@@ -165,10 +162,7 @@ abstract class SessionOrchestrator(
             ?.let { path ->
                 runCatching { promptResolver.resolve(path) }
                     .onFailure {
-                        log.error(
-                            "[SessionOrchestrator] stage=${stageId.value}: " +
-                                    "failed to load default system prompt '$path': ${it.message}",
-                        )
+                        log.error(error(stageId, path, it))
                     }
                     .getOrNull()
             }
@@ -275,6 +269,13 @@ abstract class SessionOrchestrator(
         }
     }
 
+    private fun error(
+        stageId: StageId,
+        path: String,
+        throwable: Throwable,
+    ): String = "[SessionOrchestrator] stage=${stageId.value}: " +
+            "failed to load prompt '$path': ${throwable.message}"
+
     private suspend fun dispatchToolCalls(
         sessionId: SessionId,
         stageId: StageId,