Type descriptors for the control-rail items, flyout chips, and panel popovers. Kept separate so both the ControlRail class (control-rail.ts) and the RailOverlay (rail-overlay.ts) can import them without a cycle.
Type descriptors for the control-rail items, flyout chips, and panel popovers. Kept separate so both the ControlRail class (control-rail.ts) and the RailOverlay (rail-overlay.ts) can import them without a cycle.