* fix(cli): implicit worktree selection is scoped to the caller's host
A CLI run from a shell on SSH host D matched its cwd against every host's
worktrees, so a same-path twin on host A could win. Candidates are now
limited to the caller's execution host (the relay's SSH stamp, else this
machine), and a pane's forwarded ORCA_WORKTREE_ID is scoped the same way.
* fix(cli): a local caller keeps runtime-stamped checkouts this runtime holds
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Co-authored-by: m4air <m4air@m4airs-MacBook-Air.local>