Spawn the shell with -l (POSIX only) so it loads the full profile chain
and rebuilds PATH. Without it, a shell spawned by a GUI-launched app or a
long-lived tmux keepalive server inherits a minimal PATH, so nvm-managed
node (only on the login PATH) is missing and Claude Code hooks fail with
'node: command not found'. PowerShell (Windows) has no -l; skipped there.
Applies to both the tmux new-session command and the direct-spawn path.
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