Q48: each agent's heartbeat interval paces its queued work

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/main/services/task-execution-service.ts

@@ -78,7 +78,7 @@ export class TaskExecutionService {
     this.organization = new OrganizationService(db);
     this.chat = new ChatService(db);
     this.cooldowns = new ProviderCooldowns(now);
-    this.heartbeat = new HeartbeatScheduler(db, this.cooldowns);
+    this.heartbeat = new HeartbeatScheduler(db, this.cooldowns, now);
   }
 
   async runTask(input: RunTaskInput): Promise<string> {