ACL-TTL tick campaign extension checkpoint: 26/36 cells

amd64/99999/enabled, aarch64/24680/disabled added (cell 26 needed a
retry after an unexplained external SIGTERM killed the qemu process
mid-boot -- matches a previously-noted, still-unexplained SIGTERM
recurrence from a process named "claude", first seen 2026-08-18;
1-line stub log from the killed attempt kept as audit trail). All
successful cells: 480/480 rows, 0 errors.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

logs/20260821-224038/aarch64/qemu-aarch64-20260821-224038.log

@@ -0,0 +1,2 @@
+UEFI firmware (version 2025.11-3ubuntu7 built at 11:11:58 on Mar 31 2026)
+[=3h