- docs/hub-api.md: language decision (Go 1.25) with reason and the
frozen v1 routes POST /ask, POST /approve, GET /health, including
request/response schemas, bearer-token auth, timeouts, error shapes,
logging, versioning, and a safety confirmation that no route is a
high-consequence control.
- Update README, hub_brief.md open items, and the outline docs so they
no longer say the API is undecided or the language is open.
Co-Authored-By: Paperclip <noreply@paperclip.ing>
