## Context

The previous `fix-trojan-go-startup-failure` change renamed the renewal hook path from `/etc/letsencrypt/renewal-hooks/post/restart-trojan.sh` to `/etc/letsencrypt/renewal-hooks-post/trojan-go.sh`. The latter directory does not exist — certbot uses `/etc/letsencrypt/renewal-hooks/post/`.

## Goals / Non-Goals

**Goals:**
- Use the correct certbot renewal hooks directory so the task succeeds

## Decisions

**Use the standard certbot path `/etc/letsencrypt/renewal-hooks/post/`**

Certbot automatically scans this directory for post-renewal hooks. No need to create directories or configure anything else.