* Add Ask AI to plan and annotate reviews
- mount shared AI runtime on plan, annotate, review, and Pi servers
- add shared document chat UI and comment-popover Ask AI entry point
- default providers from detected agent origin and document first-run announcement
- reuse shared code-review AI hook and document setup/docs
* Address Ask AI review followups
Stabilize AI chat session resets and callbacks, preserve per-origin provider defaults, share AI chat formatting utilities, and avoid blocking startup on model discovery.
* Fix AI permission details and Pi CLI lookup
Show formatted tool input in document AI permission cards and make Pi AI provider CLI detection work on Windows.
* Fix Pi model discovery in AI capabilities
Keep AI runtime startup non-blocking while making the capabilities endpoint await pending Pi/OpenCode model discovery before returning provider metadata.