'ncp doctor' reported a missing Ollama binary on Windows, where winget installs
it to %LOCALAPPDATA%\Programs and on PATH rather than into the repo; the same
assumption made 'ncp models install' refuse to run there. Adds ollama_bin()
mirroring _ollama_bin() in ollama_manager.py.
Also renames wait_for_port's early message to READY - 'already running' for a
service the same command just started reads like a stale process.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>