feat: Add network mode configuration for Docker in .env and docker-compose

.env.example

@@ -26,6 +26,12 @@ ABOGEN_TEMP_DIR=./storage/tmp
 ABOGEN_UID=1000
 ABOGEN_GID=1000
 
+# Network mode for the Docker container. Options:
+#   bridge (default) - Isolated container network, uses port mapping
+#   host             - Container uses host's network directly, required for
+#                      accessing LAN resources like Calibre OPDS servers
+# ABOGEN_NETWORK_MODE=host
+
 # Optional: Seed the web UI with working defaults for the LLM-powered
 # text normalization features. Leave these blank to configure everything
 # from the Settings page.

docker-compose.yaml

@@ -8,6 +8,11 @@
 #
 # Access the web interface at http://localhost:8808
 #
+# Network modes:
+#   - Set ABOGEN_NETWORK_MODE=host in .env to use host networking
+#     (required for accessing LAN resources like Calibre OPDS)
+#   - Leave unset or use "bridge" for isolated container networking
+#
 services:
   abogen:
     build:
@@ -19,6 +24,7 @@ services:
         USE_GPU: ${USE_GPU:-true}
     image: abogen:latest
     user: "${ABOGEN_UID:-1000}:${ABOGEN_GID:-1000}"
+    network_mode: ${ABOGEN_NETWORK_MODE:-bridge}
     ports:
       - "${ABOGEN_PORT:-8808}:8808"
     volumes: