Add configurable work and break intervals, pause/resume, CLI and activity-popup controls, and silent completion alerts. Use CLOCK_BOOTTIME deadlines so running timers include suspend without consuming paused time.
Refs #31
* Add Live Activities as configurable bar items
* Fix activity owner monitoring and Morph list interactions
* Keep activity rows stable during updates and tighten their layout
* Use subtle theme tint for activity cards
* Tighten activity title and progress spacing
* Use theme accent for active progress rings
* Fit compact activities to measured titles and badge
* Expose Live Activities display controls in Settings
* Open activity terminals and streamline the Morph header
* Give Morph continuous icons and prioritize workspace navigation
* Show activity progress inside its ring
* Inset activity progress rings and strengthen their stroke
* Fix activity lifecycle, command output handling and list navigation
* Reduce activity update work and harden publisher lifetimes
* Set up Live Activities for the detected user shell during installation
* Document Activities setup, daily use and troubleshooting
* Preserve Morph idle width across empty activity updates
* Fix dimming flicker, hide inactive music tab and consolidate Activities docs
* Fix panel clearance across styles and match previews to theme settings
* Prevent panel blur from repainting neighboring islands
---------
Co-authored-by: Samuel Onoja <[email protected]>