Background tasks (e.g. the Email Tags / check_email_urgency action)
resolve their model through resolve_endpoint("utility") → Default Chat.
When the configured model is one the user has since disabled on the
endpoint, the resolver still dispatched to it — on Groq that surfaces as
every email failing with "HTTP 400: model ... requires terms acceptance".
Two paths fed this:
- The auto-pick fallback selected from cached_models without excluding
the endpoint's hidden_models, so a disabled model listed first won.
- A stale default_model left pointing at a now-disabled model (seeded at
endpoint registration from raw model_ids[0]) was used verbatim.
Fix resolve_endpoint / resolve_endpoint_by_id to drop a configured model
that's in hidden_models and to pick the first ENABLED chat model. Also
seed default_model on registration via _first_chat_model so we never pin
the global default to an embedding/tts entry a provider lists first.
Checks: python -m pytest tests/test_endpoint_resolver.py
tests/test_model_routes.py tests/test_model_context.py (all pass);
python -m py_compile app.py routes/model_routes.py
src/endpoint_resolver.py.
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
