feat: add support bundle and raw audit export

iso/overlay/usr/local/bin/bee-network.sh

@@ -20,10 +20,10 @@ fi
 
 for iface in $interfaces; do
     log "bringing up $iface"
-    ip link set "$iface" up 2>/dev/null || { log "WARN: could not bring up $iface"; continue; }
+    ip link set "$iface" up || { log "WARN: could not bring up $iface"; continue; }
 
-    # DHCP in background — non-blocking, retries indefinitely
-    dhclient -nw "$iface" 2>/dev/null &
+    # DHCP in background — non-blocking, keep dhclient verbose output in the service log.
+    dhclient -4 -v -nw "$iface" &
     log "DHCP started for $iface (pid $!)"
 done