Address PR review comments:
- Test1: record original panel ID, wait for a *different* panel to report
the expected CWD — prevents false pass when focus stays on source pane
- Test2: record original tab ID, wait for a *different* tab with the
expected CWD — prevents false pass when checking the old workspace
- Remove unused `as e` exception bindings (Ruff F841)
- Shell race (set -m) was already fixed in 4402a5b0 via disown
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Pass inherited working directory when creating split panes (panelDirectories
fallback to currentDirectory)
- Suppress bash job-done "[N] Done ..." notifications in shell integration
by toggling job control (set +m / set -m) around background probes
- Add integration test for split/tab CWD inheritance
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
