Gate the unix-socket server, systemd activation, and the socket-serving
run() behind a new default socket-api feature, with required-features on
the binary. The core modules (daemon, store, transfer, discovery, meta)
stay feature-free, so platforms without a daemon model (iOS — redoal
ADR-0012) can embed Daemon directly via
cargo check -p varde-daemon --no-default-features.
Also cfg-gate the abstract-socket branch of sd_notify to Linux: abstract
socket names don't exist elsewhere, and this was the one spot keeping
varde-daemon from compiling on macOS at all.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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