- Added support for home, end, and page navigation in the model browser.
- Restricted the hover background band to mouse interactions, using cursor glyphs and text accents for keyboard selection instead.
- Synchronized focus states between the model hub sidebar and the browser pane.
- Removed redundant "login" labels from locked provider entries.
- Prevented navigation keys from triggering the input-priority grace period, ensuring responsive movement after idle states.
- Limited the input queue-drain delay to Ctrl+C and Escape double-press gestures.
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