viewer: expose hidden IP list; fix hide-ip env duplication

deploy/decoy-viewer.service

@@ -3,7 +3,7 @@ Description=Local read-only honeypot evidence viewer (loopback only)
 After=network-online.target
 [Service]
 EnvironmentFile=/etc/decoy.env
-ExecStart=/usr/bin/python3 /opt/decoy/viewer.py --bind=${VIEWER_BIND} --port=${VIEWER_PORT} --log-dir=${VIEWER_LOG_DIR} --hide-ip=${VIEWER_HIDE_IP}
+ExecStart=/usr/bin/python3 /opt/decoy/viewer.py --bind=${VIEWER_BIND} --port=${VIEWER_PORT} --log-dir=${VIEWER_LOG_DIR}
 WorkingDirectory=/opt/decoy
 UMask=0077
 NoNewPrivileges=true