Bind gunicorn to 0.0.0.0 for LAN access

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

micronas.service

@@ -8,7 +8,7 @@ Type=simple
 User=root
 WorkingDirectory=/opt/micronas
 EnvironmentFile=/etc/micronas.env
-ExecStart=/opt/micronas/venv/bin/gunicorn -w 1 -b 127.0.0.1:5000 app:app
+ExecStart=/opt/micronas/venv/bin/gunicorn -w 1 -b 0.0.0.0:5000 app:app
 Restart=on-failure
 RestartSec=5