feat(15-logging): NLog structured logging — all output through NLog (v0.5 complete)
Phase 15 complete (2 plans):
- 15-01: NLog 5.2.8 + nlog.config (rolling file daily/7d + console); logger fields in
FanucMachine, HeidenhainMachine, SiemensMachine, MitsubishiMachine, Lsv2Client, Program.cs;
SetState event handler catches → _log.Warn; cleanup catches annotated; ISS-003/ISS-004 closed
- 15-02: All Console.Write/WriteLine in Program.cs replaced with _log.Info (103 calls);
nlog.config console target layout=${message}, levels=Info only — Warn/Error file-only;
operator console output identical; every interaction now timestamped in log file
Milestone v0.5 Operational Quality complete.
Co-Authored-By: Claude <noreply@anthropic.com>