app/cloud_session.py:
- Thin wrapper around cf_core.cloud_session.CloudSessionFactory
- BYOK detection reads ~/.config/circuitforge/llm.yaml (same path as other products)
- get_session: FastAPI dependency, returns CloudUser (user_id, tier, has_byok)
- require_tier: dependency factory for tier-gated routes
app/imitate.py:
- _run_cftext gains user_id: str | None param; non-None values included in
the cf-orch ServiceAllocateRequest so premium users get their custom models
- run_imitate injects session via Depends(_get_imitate_session); extracts user_id,
filters out local/anon sessions (they get the shared catalog), passes real
cloud user_id to the ThreadPoolExecutor fanout
- _get_imitate_session wraps get_session with a try/except so imitate keeps
working in envs where cloud_session deps aren't installed
