* fix(runtime): explain full worktree id selectors (#7432)
* Fix full worktree id selectors for bare repo ids and doc guidance
- Reject bare repo-id selectors up front via a shared validator instead
of relying on worktree-list scanning, so RPC callers no longer trigger
an unnecessary rescan just to detect the mistake
- Propagate the structured worktree_id_requires_full_path code through
RPC error mapping so callers get a typed error, not just a message
- Update orca-cli, orca-emulator, and orchestration skill docs to show
the full `<repo-id>::<path>` id shape and stop implying a bare repo
id is a valid worktree selector
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Co-authored-by: Jinjing <6427696+AmethystLiang@users.noreply.github.com>
OrcaWin
Jinwoo HongandOrca
Rod BoevandJinjing
Brennan BensonandOrca
Neil