Per PR review feedback (review #130): the GUEST_HOME = '/home/node'
default in agent_provider.py was driving the wrong direction —
the agent provider shouldn't ship its own opinion about the guest
home, the backend should.
- Removes the GUEST_HOME constant.
- Makes guest_home a required kwarg on AgentProvider.provision_plan
and the agent_provision_plan shim (no default).
- Drops module-level _SKILLS_DIR / _PROMPT_PATH constants from
contrib/{claude,codex}/agent_provider.py; both providers now
derive the in-guest paths from plan.workspace_plan.guest_home
at call time, which the backend's prepare step populated.
- Updates tests/unit/test_agent_provider.py callers to pass
guest_home explicitly. The backend prepare paths already pass
it; no production-code call sites changed.
didericis-claude
b2dc5fd20b