docs updated, most probably related to pdf gen and/or url shortener

docs/20260610_SERVICES.md

@@ -10,6 +10,8 @@ _Validated: 2026-06-10 after FE `apps.conf` consolidation + BE sync. Public base
 
 ---
 
+---
+
 ## Table of contents
 
 <!-- toc -->
@@ -39,6 +41,7 @@ _Validated: 2026-06-10 after FE `apps.conf` consolidation + BE sync. Public base
   - [Publish (operator)](#publish-operator)
 - [Heartbeat (device)](#heartbeat-device)
 - [Auth & account security](#auth-account-security)
+- [URL shortener (preview — not deployed)](#url-shortener-preview-not-deployed)
 - [Non-HTTP services](#non-http-services)
 - [Validation scripts](#validation-scripts)
 <!-- /toc -->
@@ -327,6 +330,27 @@ Flow doc: [20260607-2FA-email-mobile-auth-flow.md](20260607-2FA-email-mobile-aut
 
 ---
 
+## URL shortener (preview — not deployed)
+
+**Web:** [https://s.f0xx.org](https://s.f0xx.org) (dedicated vhost; FE TLS live)
+
+| Kind | Path | Notes |
+|------|------|--------|
+| Health | `GET /api/v1/health` | Stub until PHP handlers deployed |
+| Shorten | `POST /api/v1/shorten` | Bearer token; see SPEC |
+| QR | `GET /api/v1/qr/{slug}.png` | PNG |
+| Redirect | `GET /{slug}` | `302` → original URL |
+
+Spec: [specs/20100611_3_url_shortener.md](specs/20100611_3_url_shortener.md) · scaffold: [backend/url-shortener/](../backend/url-shortener/)
+
+```bash
+export BASE=https://s.f0xx.org
+curl -sS "$BASE/api/v1/health"
+# Full cookbook: backend/url-shortener/scripts/demo_curl.sh (needs BEARER when live)
+```
+
+---
+
 ## Non-HTTP services
 
 | Service | Access | Used by |