fix(render): keep main's files; an inherited page box with area wins (hayro-syntax patch 38)

The previous commit was made on main's newer head with the older tree, so
it undid #977 and other changes from main. This commit puts main's files
back: the PR changes only vendor/hayro-syntax/src/page.rs, vendor/README.md
and crates/render/src/text/tests.rs again.

Review: a page's own box without area now gives way to an inherited one
with area before the default (A4 for a media box, the media box for a crop
box); the test adds a page whose own /MediaBox [0 0 0 0] inherits a larger
box with text past A4.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Pq7HyDBXygTf7jcqdsjcfn

docs/localization.md

@@ -20,7 +20,7 @@ Whole sentences that the layers below word — what the accessibility checker fo
 
 The Ukrainian catalog has 2,530 entries, written from the meaning of the English labels using Ukrainian computing vocabulary. Commands use infinitives; fixed-count messages use count-neutral wording. Plural-aware messages use the three [CLDR Ukrainian integer forms](https://www.unicode.org/cldr/charts/48/supplemental/language_plural_rules.html#uk): `1 сторінка`, `2 сторінки`, `5 сторінок`; 11–14 take the third form, while 21 and 22 return to the first and second. Calendar dates use genitive month names (`9 жовтня 2026`), while headings use standalone names (`Жовтень 2026`). Home recommendation cards grow to fit translated text; the toolbar search hint truncates before the shortcut, with the full label available on hover.
 
-The Lithuanian catalog has 2,798 entries and three integer plural forms. Calendar headings use standalone month names; dates use genitive forms. Calendar, inspector and password-dialog UI regressions check dynamic labels and preserve document values. A native Lithuanian-speaking contributor has reviewed the translation.
+The Lithuanian catalog has 2,798 entries and three integer plural forms. Calendar headings use standalone month names; dates use genitive forms. Calendar, inspector and password-dialog UI regressions check dynamic labels and preserve document values. A native Lithuanian-speaking contributor has reviewed the translation. The Scan & OCR review strings added afterwards (M10: the OCR Verify screen, the batch options and the engine choice) were written without native review.
 
 The Vietnamese catalog has 2,798 entries and one plural form (`plural_none`), covering the current catalog-key union. Preferences theme `Appearance` uses context `theme` → `Giao diện`; object/comment/signature appearance stays plain `Diện mạo`. Form fields use `Trường`; redaction apply wording states permanent removal. Calendar months are numeric (`Tháng 1`…`12` / `tháng 1`…`12`). A native Vietnamese-speaking contributor has reviewed the translation. Status stays `partial`: no translated help, and engine/OS details stay English inside a translated frame.