# Complete - control_plane_phase_exit_followups/01_heartbeat_timeout_runtime

## 완료 일시

2026-06-10

## 요약

Heartbeat timeout runtime follow-up loop completed after 5 reviews; final verdict PASS.

## 루프 이력

| Plan | Review | Verdict | 메모 |
|------|--------|---------|------|
| `plan_cloud_G06_0.log` | `code_review_cloud_G06_0.log` | FAIL | Active review artifact was still pending implementation; follow-up required implementation evidence and timeout lifecycle/test hardening. |
| `plan_cloud_G06_1.log` | `code_review_cloud_G06_1.log` | FAIL | Timeout loop was started but not stopped when `ListenAndServe`/`Serve` returned. |
| `plan_cloud_G06_2.log` | `code_review_cloud_G06_2.log` | FAIL | `StartListener` failure coverage existed, but direct `Server.Start()` listen failure coverage was missing. |
| `plan_cloud_G06_3.log` | `code_review_cloud_G06_3.log` | FAIL | Failure-path tests used `Shutdown()` as cleanup proof, which masked the serve-return cleanup path. |
| `plan_cloud_G06_4.log` | `code_review_cloud_G06_4.log` | PASS | `Start()` and `StartListener()` failure-path tests now directly observe `loopDone` before any `Shutdown()` cleanup. |

## 구현/정리 내용

- Added heartbeat timeout loop lifecycle cleanup for HTTP server start and listener failure paths.
- Added runtime heartbeat timeout/shutdown tests for the core HTTP server.
- Strengthened immediate `Start()` and `StartListener()` failure tests to directly observe `loopDone` closure without relying on `Shutdown()`.

## 최종 검증

- `cd services/core && go test -count=1 -run 'TestServer(Start|StartListener).*Failure.*TimeoutLoop|TestServerShutdown' -v ./internal/httpserver` - PASS; focused failure-path and shutdown tests passed.
- `cd services/core && go test -count=1 ./...` - PASS; all core packages passed.

## 잔여 Nit

- 없음

## 후속 작업

- 없음
