MCP binary was previously only buildable from source. Now produced
alongside wallhack-cli for x64 glibc and arm64 targets.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

…ervability

When something goes wrong (latency missing, peer disconnected, route
failing), there was no way to diagnose through the control plane
without SSH access to the daemon host. This adds a bounded ring buffer
(last 200 lines) that captures all tracing output and exposes it
through every control interface:

- Proto: LogsRequest/LogsResponse
- NodeApi: logs(count) method
- IPC dispatch
- MCP tool: logs (with lines parameter)
- REPL: logs [N]
- CLI: wallhack logs [-n N]
- REST: GET /logs?lines=N
- OpenAPI spec updated

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Auto-routing, ping removal, latency fix, channel sprawl dedup,
and all stale terminology renames verified and marked done.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Per naming conventions: "client" is prohibited in domain logic.
Renamed client_ip → source_ip, client_endpoint → source_endpoint,
client_port → source_port across icmp.rs, manager.rs, session.rs.
Also fixes duplicated doc comment in handler.rs.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

The SimpleSubscriber already deduplicates consecutive identical log
lines. Including the peer address in the warn message is sufficient —
the per-IP HashMap tracker added complexity without meaningful benefit.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

neli 0.7 makes struct fields private (accessor methods), replaces
struct literals with builders, moves NlSocketHandle to
socket::synchronous, and changes flag types. Also extracts a shared
recv_netlink_ack helper to deduplicate the route add/remove ACK
handling.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Marks Cargo.lock as binary for merge purposes so git never silently
auto-merges it — forces regeneration on conflict instead.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>