The InProcessRuntime constructed its AgentStore with only `rootDir`, leaving task-claim/checkout/release operations unconfigured. As a result, the heartbeat auto-claim scan logged "TaskStore not configured for task-claim operations" whenever a relevant todo was found. Pass the runtime's TaskStore through to the AgentStore so claimTaskForAgent succeeds. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>