v1.3.30 — Interface accessibility

I added focused accessibility guidance for reconstructed interfaces: keyboard actions, focus order/visibility/return, names and labels, error correction and dynamic status feedback. Observed original behavior stays separate from proposed improvements and from visual/functional fidelity.

A separate owned Pocket Board example demonstrates selected keyboard and focus paths with 22 native-key browser checkpoints and 14 focused regression tests. Historical fixtures remain unchanged. Screen-reader announcements, other devices/browsers and measured contrast remain unrun with practical manual next steps; this is not a WCAG conformance or independent-user certification.

No new dependency, auditor, runtime, service, provider or scheduler. Existing installer/updater consent, compatibility, safe-path, recovery and release reliability behavior is preserved.