Glyph + spoken label replaces every app-written string the guard
found: empty states, tile meta, sheet dates/fields, date presets,
template/section headings, status footer, snackbars, GitHub and
cloud-image results, upload/download badges, Material tooltips.
Guard tests (text_free_*_test) walk the painted tree.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
