ns-ui / timeline-agent-lanes

Fix flaky checkout test — orchestration

in progress
Orchestrator
Planner
Search agent0:02
Codegen agent0:02
Reviewer agent0:02
Search agent, Codegen agent, Reviewer agent are active concurrently.

orchestrator hands off to planner, planner fans out to three subagents running concurrently, then hands back — stepped connectors mark each baton pass with its duration