* Support explicit remote branch reuse across workspaces
- Preserve selected branch identity, tracking, and busy-branch handling
- Add explicit branch-off intent with v2 runtime capability gating
* Style existing workspace action in branch reuse UI
* Preserve explicit branch reuse with versioned host support
- Gate strict reuse on a new request capability while retaining legacy behavior
- Warn when a reused remote branch cannot be configured as the push upstream
* Clarify selected branch checkout options
* Offer existing or new branch choices for worktrees
* Preserve new-branch intent when reusing a branch name
* Adapt branch composer tests and catalog after rebase
* Refresh mobile RPC recordings for branch intent capabilities
* Remove retired Russian localization entries
* Remove retired German and Turkish localization entries
* Add branch selection translations for existing workspaces
* Localize mobile worktree branch selection