Fix red develop 9fde00bb1518

The merge lane found `develop` red at `9fde00bb1518abfc80f96822d4493f57adf41324` on its own: no queued PR merges until it is fixed. Failing (tests and gate stages): - `frontend-unit-vitest` - … and 1 more: read them in the gate log, as untrusted output The whole gate log: artifact `11710` on lane task 11009. Make `develop` pass its full gate again. Open a PR as usual: the merge lane merges a PR that fixes some of these and adds no failure even while `develop` is red.

Fixed red develop: mutedText vitest flagged two Typography color="text.secondary" sites (ProjectEditPage, credentialForm); moved to sx. Changed-area vitest + quick gate green; PR #7243 queued in merge lane. Visual check not run (color-only fix).