Adds a second primary path beside the preset scenario explorer. `#/chat`
opens a blank thread on a freshly minted mock tenant — one company, one
agent, one blank issue — and drives real Codex through real runnerd. The
scenario explorer and its deterministic deep links are unchanged.
The clean room is live-only by construction. The route pins `mode=live`
and drops `shot`/`at`, the package server has no scripted path for it and
refuses any non-live projection, and a failure to start runnerd or Codex
is reported with a retry rather than replaced by a fixture.
`createPhase7CleanRoomSessionInput` seeds the minimum a runner session
needs and fails closed if anything else is present, so "starts blank" is
enforced at the seam rather than assumed. The exposure profile is fixed
and inspectable while the calls stay conversation-driven; three grants
(`governance:approvals:decide`, `workspace:control`,
`test:generic_api_request`) stay withheld so a typed denial is reachable
in a chat nobody scripted.
`Reset` and `New chat` retire the previous session's authority, drop its
workspace, and mint new mock identities; the old session id answers 404
afterwards. The projection now publishes the real-API block as a
`network-guard-<sessionId>` control-plane record, so "no request reached
a real Paperclip API" is inspectable in the drawer on both surfaces.
Also fixes two things the clean room surfaced: the unanchored `sk-`
credential heuristic matched mock ids of the form `task-cleanroom-<token>`,
and a hash change left one committed frame reporting `settled` for the
surface just navigated away from.
The 24-image screenshot matrix is re-recorded: the surface rail carrying
the clean-room entry is a real, always-visible element, and it reproduces
byte-for-byte against Chromium 151.0.7922.34.
Verified: test:phase7 159/159; test:browser:issue-thread 58/58 with axe
clean; check:phase7:ui 24/24 byte-identical; docs:validate 93 files, 34
OKF concepts; smoke:phase7:cleanroom all 15 assertions true against real
Codex 0.132.0.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Dotta