* fix(cli): orca file open and diff open name their owner
The desktop's own catalog resolves the worktree for files.open/files.openDiff,
so the renderer notification now says so (null) instead of leaving the owner
unset, which let the focused server claim a tab the renderer could not place yet.
* fix(cli): keep a paired server's ownership on diff open
A catalog row stamped runtime:<env> names that server; null would route its diff through this desktop's git.
---------
Co-authored-by: m4air <m4air@m4airs-MacBook-Air.local>