v1.45.0

• Slim every machine-facing output down to the answer: result --json and foreground --json
  payloads carry one copy of the final message instead of three or four, plan-store and
  plan-state --mark-implemented return metadata instead of echoing the stored plan back, a new
  plan-state --metadata mode lets /stereo:plan-state open without shipping the plan body,
  JSON output is compact, long foreground runs sample their progress echoes, and status reports
  print static job metadata once with finished jobs collapsed to one line each
• Make every companion invocation faster: workspace resolution is cached per process (a status
  wait now spawns one git subprocess where it spawned hundreds), subcommand handlers load
  lazily, and a live workspace broker vouches for Codex availability so trivial commands skip
  the probe spawns
• Harden the runtime edges: a write racing app-server death no longer crashes the worker,
  shutdown escalates when Codex ignores SIGTERM, a broker-busy rejection after thread start
  falls back to a private app-server so concurrent sessions never hard-fail, the
  connection-closed error is reported consistently on the broker transport, value flags reject a
  following flag token instead of silently swallowing it, cancel reports a failed worker kill,
  and implement-state/tournament-state updates re-validate what --record enforced
• Trim duplicated instruction text across the rescue stack and pair commands, and speed the
  development loop: the Windows CI lane sheds duplicate OS-independent steps, superseded PR runs
  cancel, the pinned Codex CLI install is cached, and the test suite drops from roughly 58 to 44
  seconds