chore(memory-bank): record the second follow-up review and the state of the labs

The second follow-up review (the first-lab run and the cleanup changes)
found no Blocker and no Major, and four Minors that are corrected. Both
labs are clean and the six VMs of the matrix run.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: AI Assistant <ai@example.com>

.memory-bank/activeContext.md

@@ -137,7 +137,11 @@ open.
   Reviewed by the built-in code-review agent (custom `security-reviewer`
   unavailable): approve with Minor, fixed; a second review found one Major
   (record accuracy), addressed by the replay; a follow-up review found no
-  Blocker or Major and five Minors, corrected.
+  Blocker or Major and five Minors, corrected; a second follow-up review found no
+  Blocker or Major and four Minors, corrected. State of the labs at 07:30 UTC on
+  2026-10-10: no fixture and no probe residue in either lab (`Verify` of the
+  matrix lab 06:54, of the first lab 07:29); the six VMs of the matrix run, and
+  `OSWin11E` (started 06:44) shuts itself down about an hour after its start.
 
 ## Next step
 

.memory-bank/progress.md

@@ -103,7 +103,9 @@ After 5.0.0, archive in favor of WindowsAccessControl (Decision 18).
   `db04ef2`. A second review of the later commits found one Major (the record
   called the cause settled without a baseline replay), addressed by the replay,
   `9344ff7`, and `ab0d8e1`; a follow-up review of those fixes found no Blocker or
-  Major and five Minors, corrected in `e2384e5` and `70f494a`. Record:
+  Major and five Minors, corrected in `e2384e5` and `70f494a`; a second
+  follow-up review (the first-lab run and the cleanup changes) found no Blocker or
+  Major and four Minors, corrected in `b78784d` and `dbb4bd6`. Record:
   `Tests/Lab/Acceptance-2026-10-10-os-matrix.md`; nothing was pushed.
 
 ## Stable capabilities