Update instructions for network configuration in Portainer

Improves network flexibility by removing IP pre-setting and simplifying network changes via Portainer using docker-compose.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 91318273-c764-4fd4-be04-bdc12c38af32
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/0715008c-7244-40f4-befc-26c014852236/1a628c74-3aad-4182-a42f-aeae036e6dcf.jpg

docker-compose.yml

@@ -61,13 +61,8 @@ volumes:
   backup_data:
   logs_data:
 
-# Configuration réseau flexible
-# Vous pouvez changer NETWORK_DRIVER dans .env selon vos besoins
+# Configuration réseau flexible (sans IP prédéfinies)
+# Vous pouvez changer de réseau dans Portainer après installation
 networks:
   default:
-    driver: ${NETWORK_DRIVER:-bridge}
-    driver_opts:
-      com.docker.network.bridge.name: ${NETWORK_BRIDGE_NAME:-docker0}
-    ipam:
-      config:
-        - subnet: ${NETWORK_SUBNET:-172.20.0.0/16}
+    driver: ${NETWORK_DRIVER:-bridge}