* style: update chat layout and spacing for improved UI consistency
- Adjusted margin and padding for .chat-thread and .content--chat to enhance layout.
- Consolidated CSS selectors for better readability and maintainability.
- Introduced new test for log parsing functionality to ensure accurate message extraction.
* UI: polish agent skills, chat images, and sidebar status
* test: stabilize vitest helper export types
* UI: address review feedback on agents refresh and chat styles
* test: update outbound gateway client fixture values
* test: narrow shared ip fixtures to IPv4
Bug 1 (high): replace fixed sleep 1 with caller-PID polling in both
kickstart and start-after-exit handoff modes. The helper now waits until
kill -0 $caller_pid fails before issuing launchctl kickstart -k.
Bug 2 (medium): gate enable+bootstrap fallback on isLaunchctlNotLoaded().
Only attempt re-registration when kickstart -k fails because the job is
absent; all other kickstart failures now re-throw the original error.
Follows up on 3c0fd3dffe.
Fixes#43311, #43406, #43035, #43049
Peter Steinberger
Val Alexander
Robin Waslander
Vincent Koc
Josh Avant
Sebastian