Build the Trust Center landing hero and the nav page headers on a shared
HeaderBand shell. The home page loads its own query and feeds the Hero
(org headline, description, and contact info) via a colocated fragment;
the Documents, Subprocessors, Updates, and Data Requests pages use a
PageHeader (size-7 title, optional count, inline actions). Switch the
layout body to the grey sand-2 canvas so the white header bands read as
surfaces on top.
Split the header UI into focused components rather than one
over-configurable Hero: HeaderBand owns the band, Hero the landing
content, PageHeader the nav-page content. Add a hostname helper under
lib/url and standardize the 1024px container on the max-w-5xl token.
The Documents/Subprocessors filter/search/tabs toolbars and item counts
are deferred until the matching v2 components and queries exist.
Signed-off-by: Émile Ré <emile@probo.com>
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