Panel consensus (the branding panel): don't mount full-app iframes on
mobile — nested scrolling, keyboard collapse and double chrome break both
Element and oCIS under the bottom tab bar. Chat and Drive render a gateway
card (same-tab handoff, matrix: deep link, signed-in-as) below 1024px; the
iframe stays on desktop. hub-sso.html pins mx_local_settings.theme to
custom-OccupyHub Dark once (version-flagged) — a device's earlier picker
choice would otherwise beat config.json's default_theme.
glass beadian
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