feat(i18n): reconcile multilingual navigation and RTL rendering

www/reports/accessibility-audit.md

@@ -13,6 +13,15 @@
 - Reduced decorative image announcements through empty alt text where appropriate.
 - Responsive typography and layouts without fixed text sizing.
 - Language-switcher choices are limited to routes that actually exist.
+- The language selector uses native `details`/`summary` disclosure semantics and
+  real links. Visitor navigation is resolved independently from SEO hreflang,
+  so validated noindex author roots remain reachable without adding them to the
+  hreflang graph.
+- Desktop, mobile, and footer navigation resolve against eligible generated
+  routes. Cross-language fallbacks are explicitly identified rather than
+  silently linking visitors to another language.
+- Arabic footer phone, email, and Latin-script address values use narrowly
+  scoped left-to-right bidi isolation while the surrounding footer remains RTL.
 - Like buttons expose pressed and disabled state.
 - Source-faithful colors, section hierarchy, and controls were retained while
   avoiding the source site's modal that obscures content on initial load.
@@ -24,5 +33,12 @@
 - Perform contrast testing against final approved brand colors.
 - Review extracted article heading hierarchy and any table markup.
 - Confirm Arabic content and RTL reading order with a fluent reviewer.
+- Review Spanish and Arabic operational labels and fallback-language notices
+  with fluent reviewers. The source-published author labels `Welcome to`, `All
+  Post`, and `Popular Posts` remain in English pending an editorial decision.
+- Test the native language disclosure, mobile navigation, search announcements,
+  contact links, and full-page RTL reading order with screen readers. Phase
+  6B.5 validated generated markup and keyboard semantics, but no screen-reader
+  executable was available in the implementation environment.
 - Validate the rebuilt mobile navigation and all full-page responsive
   layouts in a browser outside the autonomous sandbox.