Nove role: - roles/netbird/ - instaluje NetBird mesh VPN klient Konfigurace: - netbird_setup_key: '' (placeholder, dopln v group_vars/all.yml) - netbird_run_as_system_service: true - netbird_management_url: 'https://api.netbird.io' Playbook priprav-novy-server.yml: - pridana role netbird mezi docker a fail2ban - update hlavicky (krok 8 NetBird) - update README strom (netbird role)