Match floating action bar to Figma themes

[ComputelessComputer]

Summary:

• apply the light and dark floating action bar gradients, dimensions, and shadows
• preserve the existing expanded chat interaction and cover the CTA behavior

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Note

Low Risk
CSS-only changes to chat CTA presentation with no logic or data-path changes; risk is limited to visual regression on the floating bar.

Overview
Updates the floating “Ask anything” chat CTA to match Figma: trigger width goes from w-40 to 180px on ChatCTA, FloatingChatCTA, and the session floating action wrapper.

The collapsed handle surface swaps solid black/white for light/dark linear gradients, a tighter clip-path (90px half-width, 32px corner radius), slightly taller dark-mode rest height (dark:h-3), and layered inset/outset shadows. Hover/focus expansion (full pill, label reveal, open chat) is unchanged; tests were updated to assert the new classes.

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[cursor]

Cursor Bugbot has reviewed your changes using default effort and found 1 potential issue.

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