Add wordarr: request & import manager for ebooks, comics and audiobooks

FastAPI + SQLite backend with vanilla-JS web UI. Requests via Open
Library / Audible / AniList metadata search (or manual entry) with
per-request target library selection. Manual import flow: scan the
download dir, fuzzy-match files against missing requests, review,
then move+rename into the library per configurable naming templates.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

docker-compose.yml

@@ -0,0 +1,14 @@
+services:
+  wordarr:
+    build: .
+    container_name: wordarr
+    ports:
+      - "8787:8787"
+    volumes:
+      - ./config:/config
+      - /mnt/downloads:/mnt/downloads
+      # Library-Roots so mounten, wie sie in den wordarr-Libraries konfiguriert sind:
+      - /mnt/library:/library
+    environment:
+      - WORDARR_DOWNLOAD_DIR=/mnt/downloads
+    restart: unless-stopped