Selected and primary states are raised surfaces now instead of flat violet
or zinc fills: the library tab, checked sidebar tools, the thickness and
agent-filter pills, the active page row and its transition sweep, the
strategy card's hover ring, primary buttons through the Shad theme, the
placement banner, and toasts. The page row is rebuilt as fixed layers so
switching states no longer shifts its content by the resting border's
width. Active items keep their siblings' weight; the surface marks them.

The strategy quick switcher becomes a proper menu: popover grey, hairline
border, 12px radius, the floating-menu shadow, flat ghost rows with a
thumbnail. Its bar clips both segments so hover fills stop spilling past
the border. The cloud-exit dialog lays its actions out in one wrapping
row with sentence-case labels. The cloud outbox banner stops pushing the
library grid down and floats in the corner as a status card instead.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>