Files
ruvnet--RuView/ui/services
Dragan Spiridonov 56327d0931 decide: browser sessions are read-only permanently; drop the dead step-up client
Decision: browser-side admin is not wanted. `BROWSER_SIGNIN_SCOPE` stays
`sensing:read`, and the escalate-on-demand design sketched while this was open
is not being built. Destructive operations — training, model delete, recording
delete — keep their home in the CLI, where `--admin` is explicit and typed by a
person. Routing them through a browser would mean either asking every user to
consent to delete capability in order to watch a stream, or building a second
consent flow to avoid that.

Consequences, now settled rather than open:

- The UI's admin controls are unreachable from a Cognitum browser session, and
  that is intended. The manual token-paste field is unchanged and still carries
  whatever authority the pasted token has, so nothing that worked before stops
  working.

- REMOVED the client-side step-up redirect from ui/services/api.service.js. It
  caught an RFC 6750 challenge that can never be issued to a browser, and it
  ended in `return new Promise(() => {})` — so if any other 401 had ever grown
  that header, every caller awaiting it would have hung forever with no error
  and no timeout. Dead code with a trap in it is worse than no code.

- KEPT ADMIN_REVERIFY_SECS as a server-side backstop. Fail-closed and free, so
  if the requested scope is ever widened the freshness requirement is already
  in place. Documented at its definition as a backstop specifically so nobody
  reads its passing tests as evidence the control is exercised — the tests
  reach it through a crate-internal seam that mints an admin cookie the real
  flow does not produce.

ADR-271 also stops hedging on the session TTL: chosen is A at one hour. Option B
(server-side refresh-token store) is not built, and the ADR now names the
residual instead of implying it is closed — within one hour a revoked Cognitum
grant still reads sensing data through an existing browser session. There is no
introspection endpoint, so nothing short of B closes that, and one hour is the
size of the hole we accepted.

Adds `the_cookie_max_age_matches_the_session_expiry`, which the previous ADR
revision asked for and nobody had written: Max-Age and the payload's `exp` are
two independent expressions of one lifetime, and drift means either the browser
presents a session we reject or we hold authority the browser discarded.

Verified: workspace 176 suites clean, UI 22, api.service.js parses.

Co-Authored-By: Ruflo & AQE
2026-07-23 14:47:31 +02:00
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