### Added

- Added slash-triggered skill picking in the composer, including inline skill chips, description tooltips, and keyboard shortcuts for skill selection.
- Added a global search overlay between Home and Skills with quick actions, recent chat lookup, and keyboard-driven navigation.

### Changed

- Changed recent chat search results to use a fixed eight-slot shortcut window so visible items can be browsed and opened with stable `Win/Cmd + number` shortcuts.
- Changed selected skill chips to support keyboard focus movement, delayed descriptions, and direct deletion without leaving the composer.

### Fixed

- Fixed Home navigation from global search so creating a new session always restores focus to the main composer input.
