* Add Amp plugin integration
* Use official Amp logo on landing page
* Tighten landing agent selector
* Default landing selector to Claude Code
* Stabilize server ready handoff test
* Create ready handoff directory before writing
* Stabilize server ready handoff tests
* Fix Amp command cancellation and cwd
* Preserve Plannotator browser handling for Amp
* Fix Amp review edge cases
* Add PowerShell installer smoke coverage