Rework install.sh:
- detect OS via uname (Darwin -> bashrc-osx, else bashrc-linux);
remove the {server|linux|arm|osx} argument and bashrc-server
- fix broken /tmp/config paths that made server+osx install no bashrc
- switch #!/bin/sh -> bash, add set -euo pipefail, quote expansions
- clone nerdtree into bundle (was a no-op cp of a dir), drop the
redundant molokai clone (already tracked in vim/colors)
- guard apt-get behind command -v so macOS skips it
- make re-runnable; drop the no-op trailing 'source ~/.bashrc'
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
