- Setup wizard auto-detects gemini binary via `which`, saves full path
so systemd service can find it without user PATH
- `mcpctl status` tests LLM provider health (gemini: quick prompt test,
ollama: health check, API providers: key stored confirmation)
- Shows error details inline: "gemini-cli / gemini-2.5-flash (not authenticated)"
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>