c34cf3641b
If the host bind-mounts ~/.config/devbox-shell/ into the container (the directory-mount pattern that avoids single-file inode breakage), the container needs a bridge line in .bashrc or .bash_aliases to source the mounted file. Previously this bridge had to be re-added manually after every --force-recreate because it lived in the container's writable layer. Baking it into the skel .bash_aliases makes it automatic: every fresh container sources ~/.config/devbox-shell/bash_aliases if it exists, with zero manual steps. Hosts that don't use the devbox-shell pattern are unaffected — the [ -r ... ] test silently skips.