feat: add bookshelf service on london-b (#122)

Bookshelf (a Readarr revival) for managing the ebook/audiobook library.
Runs on london-b with config at /root/bookshelf and the library at
/hdd/books mounted into the container at the same path.

ansible/inventory/host_vars/london-b.yml

@@ -11,6 +11,7 @@ docker_services:
   - miniflux
   - smartctl-exporter
   - plex-exporter
+  - bookshelf
 
 # Snap-managed services (deployed by media_stack role)
 snap_services:

ansible/services/README.md

@@ -27,6 +27,7 @@ There is **no** per-host subdirectory — services are named by what they are, a
 | poste-io | Docker | nuremberg-a | Mail |
 | jellyseerr | Docker | london-b | Plex request manager |
 | navidrome | Docker | london-b | Music streaming |
+| bookshelf | Docker | london-b | Ebook/audiobook manager (Readarr revival) |
 | slskd | Docker | london-b | Soulseek client |
 | miniflux | Docker | london-b | RSS reader (with postgres) |
 | smartctl-exporter | Docker | london-b, copenhagen-a | SMART metrics |

ansible/services/bookshelf/README.md

@@ -0,0 +1,13 @@
+# Bookshelf
+
+Ebook/audiobook collection manager — a revival of Readarr. Monitors RSS
+feeds, downloads, sorts and renames books via Usenet/BitTorrent.
+
+- **Host:** london-b
+- **Port:** 8787
+- **Image:** `ghcr.io/pennydreadful/bookshelf:hardcover` (Hardcover metadata; use the `softcover` tag for a Goodreads/Readarr-compatible database)
+- **Config:** `/root/bookshelf/` (`:/config`)
+- **Book library:** `/hdd/books` (mounted at the same path in the container, on the ZFS pool)
+
+Reachable over Tailscale at `http://london-b:8787`. Not exposed publicly
+(no Caddy/DNS entry).

ansible/services/bookshelf/docker-compose.yml

@@ -0,0 +1,18 @@
+---
+# Bookshelf - Ebook/audiobook collection manager (Readarr revival)
+# Host: london-b (100.84.65.101)
+# Data: /root/bookshelf (config), /hdd/books (library)
+# Image: ghcr.io/pennydreadful/bookshelf (hardcover = Hardcover metadata)
+
+services:
+  bookshelf:
+    image: ghcr.io/pennydreadful/bookshelf:hardcover
+    container_name: bookshelf
+    restart: unless-stopped
+    ports:
+      - "8787:8787"
+    environment:
+      TZ: Europe/London
+    volumes:
+      - /root/bookshelf:/config
+      - /hdd/books:/hdd/books