The CAKE egress shaper now has a systemd unit that wraps the
left4me-apply-cake helper in apply and clear modes. The unit is a
oneshot that starts after network-online and survives service restarts,
allowing the shaper to persist across reboots and be managed by systemd.
The environment file is marked non-fatal (EnvironmentFile=-) to handle
missing or incomplete configurations gracefully.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
