Replace the right rail's collapsed launcher cards with a vertical tab
strip: one sideways tab per panel, the open panel beside it, at most one
panel open in every HUD layout. The panels' collapsed classes stay the
source of truth; the strip mirrors them and routes every change through
setPanelCollapsed, so persistence and share links are unchanged. Phones
keep the sheet shell.
Five presentations, picked with data-rail-tabs on the rail: cards-down
(default), cards-up, spine, icons and minimal.
The one-owner rule, previously Cyber-only, now applies to every desktop
layout, so the right rail's Tactical auto-collapse retry path is dead and
removed. Escape inside a panel returns focus to the panel's tab.
Co-Authored-By: Claude Fable 5.1 <[email protected]>
At 720px and narrower the globe stays full screen and a bottom tab bar (Layers,
Cameras, Context, Search, More) opens one bottom sheet at a time, presenting the
existing rail and dock panels in place. Sheets borrow panels without persisting
or sharing them and put back what they changed. Cockpit, recording and clean
view close the sheet; scene playback keeps STOP reachable. Focus moves into the
sheet and back to its tab, the required attribution stays visible above the
voice control and any sheet, and the page uses safe-area insets. Wider
viewports are unchanged.
Adapted from the phone tab-shell proposed in #203 by @blearymoth.
