Fixes#128
Two bugs:
1. doctor warn message said 'agent-reach configure groq-api-key' but the
actual CLI arg is 'groq-key' (see cli.py:75 choices list and :993 handler).
Same typo existed in cli.py _install_xiaoyuzhou_deps() output.
2. check() had a logic flaw: the inner 'if not has_key' was nested inside
'if not os.environ.get(...)', so when GROQ_API_KEY env var was absent but
config.json read succeeded, the outer condition never triggered the warning.
Refactored to a flat has_key variable — cleaner and correct.
Verified: 36/36 tests pass, manual unit tests confirm warn uses 'groq-key'
and ok is returned when groq_api_key is present in config.json.
Co-authored-by: 小白(Agent) <neo@agent-reach.dev>
Pnant
f3daa5cf97