v0.0.16

Fixes

• CI prefetch churn: Raised build session timeout from 120s to 300s — sequential cargo commands in CI now share one session instead of triggering 13 redundant cargo-metadata + prefetch cycles
• Dead-daemon detection: send_remote_check returns immediately when socket is absent (was waiting 10s on dead socket); read timeout reduced from 10s to 3s
• BFS parse resilience: Malformed nodes in cargo metadata resolve graph are skipped instead of aborting all prefetch
• Marker-file ordering: Marker written after successful prefetch so hung cargo-metadata doesn't block retries
• Wrapper syscalls: File logging skipped in wrapper mode (2 fewer syscalls per crate)
• GC cleanup: Stale rustc-ver-*.txt / linker-ver-*.txt files cleaned during periodic GC sweep