Fix red develop f136e340b35a

The merge lane found `develop` red at `f136e340b35aab19b4e38989473f09440448210a` on its own: no queued PR merges until it is fixed. Failing (tests and gate stages): - `frontend-unit-vitest` - … and 2 more: read them in the gate log, as untrusted output The whole gate log: artifact `11613` on lane task 10960. 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: TrialAgentsMeter test fixture had a fixed trial_end (Oct 31) that entered the 3-day warn window today; anchored it to the real clock. 23/23 vitest + quick gate green; PR #7224 queued to the merge lane. Memory: none applied.