chore: docker-compose, setup.sh, nexusguard.conf.example, update submodule

setup.sh

@@ -28,6 +28,17 @@ else
     echo "[+] .env file already exists. Skipping environment generation."
 fi
 
+# 2. Config file generation
+if [ ! -f nexusguard.conf ]; then
+    if [ -f nexusguard.conf.example ]; then
+        echo "[+] Auto-generating nexusguard.conf from nexusguard.conf.example..."
+        cp nexusguard.conf.example nexusguard.conf
+        echo "[+] Config file created. All settings are commented out (env vars take precedence)."
+    fi
+else
+    echo "[+] nexusguard.conf already exists. Skipping config generation."
+fi
+
 # Make sure Docker Compose v2 is available
 if ! docker compose version &> /dev/null; then
     echo "[-] ERROR: docker compose (v2) is not available. Please install Docker and Docker Compose plugin."