Shell snapshot doesn't capture zoxide dependency functions, breaking cd alias

Description

When a user has zoxide configured with alias cd="z" in their .zshrc, Claude Code's shell snapshot mechanism captures the
z function but not the underlying __zoxide_* functions it depends on. This causes cd commands to fail with:

z:1: command not found: __zoxide_z

Steps to Reproduce

1. Have zoxide installed and configured in .zshrc:

alias cd="z"
eval "$(zoxide init zsh)"

1. Start a Claude Code session
2. Run any command with cd

Expected Behavior

cd should work normally, either by:

• Capturing all zoxide functions (z, __zoxide_z, __zoxide_cd, __zoxide_pwd, __zoxide_hook) together
• Or falling back to builtin cd if dependencies are missing

Actual Behavior

The shell snapshot captures z but not __zoxide_z, so the alias chain breaks.

Diagnostic Info

$ type z
z is a shell function from /Users/.../shell-snapshots/snapshot-zsh-....sh

$ whence -f z
z () { __zoxide_z "$@" }

$ type __zoxide_z
__zoxide_z not found

Workarounds

• Use builtin cd instead of cd
• Re-initialize zoxide: eval "$(zoxide init zsh)" && cd ...