TOC inside the docs

docs/INFRA.md

@@ -4,6 +4,7 @@
 
 | Doc | When |
 |-----|------|
+| [docs/README.md](README.md) | **Documentation index** — TOC for all guides |
 | **This file** | Topology, hosts, ports, sshfs, agent rules |
 | [examples/app_hub/DEPLOY.md](../examples/app_hub/DEPLOY.md) | Hub landing only (BE `listen 80`) |
 | [examples/crash_reporter/backend/README.md](../examples/crash_reporter/backend/README.md) | PHP, MariaDB, tickets, ingest |
@@ -12,6 +13,31 @@
 
 ---
 
+---
+
+## Table of contents
+
+<!-- toc -->
+- [1. Topology](#1-topology)
+- [2. Port 8089 — not the androidcast vhost](#2-port-8089-not-the-androidcast-vhost)
+- [3. Public URLs](#3-public-urls)
+- [4. Disk layout (BE)](#4-disk-layout-be)
+- [5. Nginx — source of truth in repo](#5-nginx-source-of-truth-in-repo)
+  - [BE apps.conf today (typical)](#be-appsconf-today-typical)
+  - [Hub location (correct)](#hub-location-correct)
+  - [Reload (BE only for hub deploy)](#reload-be-only-for-hub-deploy)
+- [6. Local sshfs workspace (not in git)](#6-local-sshfs-workspace-not-in-git)
+- [7. FE nginx — two server names](#7-fe-nginx-two-server-names)
+- [8. Verify](#8-verify)
+- [9. Backend app (crashes / tickets)](#9-backend-app-crashes-tickets)
+- [10. Rules for agents](#10-rules-for-agents)
+- [11. Changelog (infra doc)](#11-changelog-infra-doc)
+<!-- /toc -->
+
+**Documentation index:** [README.md](README.md)
+
+---
+
 ## 1. Topology
 
 ```text