fcf8d8010a
- Windows panes: a WinGet tmux runs native programs and there is no `sh`, so
every pane's `sh -c` wrapper died at once ("Command failed: tmux set-option
… mouse on"). paneArgv runs the CLI itself on win32, and a Terminal gets
tmux's own default shell (newSession drops the `--` for an empty argv).
- Plugin UI build: client deps install with --ignore-scripts and tsc/vite run
by the running node instead of `npm run build`. On Windows esbuild's
postinstall went through cmd.exe with no `node` on the server's PATH, both
installs failed, and Update now kept the previous UI. A test keeps the two
build steps equal to client/package.json's build script.
- Update all: Atomics.wait instead of a `sleep` binary Windows lacks.