adding a queue system to the agent runner

apps/server/src/routes/backlog-plan/common.ts

@@ -0,0 +1,39 @@
+/**
+ * Common utilities for backlog plan routes
+ */
+
+import { createLogger } from '@automaker/utils';
+
+const logger = createLogger('BacklogPlan');
+
+// State for tracking running generation
+let isRunning = false;
+let currentAbortController: AbortController | null = null;
+
+export function getBacklogPlanStatus(): { isRunning: boolean } {
+  return { isRunning };
+}
+
+export function setRunningState(running: boolean, abortController?: AbortController | null): void {
+  isRunning = running;
+  if (abortController !== undefined) {
+    currentAbortController = abortController;
+  }
+}
+
+export function getAbortController(): AbortController | null {
+  return currentAbortController;
+}
+
+export function getErrorMessage(error: unknown): string {
+  if (error instanceof Error) {
+    return error.message;
+  }
+  return String(error);
+}
+
+export function logError(error: unknown, context: string): void {
+  logger.error(`[BacklogPlan] ${context}:`, getErrorMessage(error));
+}
+
+export { logger };