Resolve eight nested README links from their owning directory. Preserve the
shared README/website inventory contract by registering Malayalam with an
explicitly untranslated catalog and the existing visible, noindex English
fallback. Regenerate the shared website navigation and catalog references.
Existing parsed translations remain unchanged.
Validation: docs check, full website check (401 HTML pages, 27790 local
references, 19 tests), all 19 generated Malayalam fallback pages, and two
source reviews. No Malayalam website translation or browser layout claim.
Fixes#4821
morluto
b27e1a74c9