ROADMAP "Backend → more tests around endpoint probing and provider setup".
TestSetupProbeSafety already covers _probe_endpoint's keyed/unkeyed curated
fallback; this adds the rest of the probe surface, with httpx faked the same
way (no network):
- _probe_endpoint: OpenAI {"data"} vs native Ollama {"models"} list parsing,
the /api/tags fallback for Ollama builds lacking /v1/models, and the
no-models-found result.
- _ping_endpoint (previously untested): 2xx reachable, auth failure (reached
but not reachable), the /login-redirect "that's Odysseus, not a model
server" trap, generic redirects, transport errors, and the native Ollama
/api/version fallback.
- _probe_single_model (previously untested): ok/fail/timeout status mapping,
dict/string upstream error extraction, and OpenAI vs Anthropic request
routing (x-api-key, /v1/messages, tool schema).
- _classify_endpoint: the Tailscale CGNAT 100.64.0.0/10 local range and its
boundaries.
