[BUG] `claude --resume <session-id>` crashes with: ERROR UKH is not a function. (In 'UKH(K)', 'UKH' is undefined)

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Title: crash: UKH (onSessionRestored) is not a function when using --resume

Body:
## Description

claude --resume <session-id> crashes with:

ERROR UKH is not a function. (In 'UKH(K)', 'UKH' is undefined)

## Steps to Reproduce

claude --resume <session-id>

## Root Cause

In the REPL component, RW4 is called with enabled: false (hardcoded via
let I = useMemo(() => false, [])). When disabled, RW4 returns
onSessionRestored: undefined.

On mount, when initialMessages are present (as they are during --resume),
the component unconditionally calls UKH(K) without guarding for undefined:

s$.useEffect(() => {
if (K && K.length > 0)
..., UKH(K) // crashes: UKH is undefined when RW4 is disabled
}, [])

## Fix

Either guard the call (UKH?.(K)) or have RW4 return a no-op stub instead
of undefined when enabled is false.

What Should Happen?

Either guard the call (UKH?.(K)) or have RW4 return a no-op stub instead
of undefined when enabled is false.

Error Messages/Logs

Steps to Reproduce

Looking at the crash, the bug is clear from the minified source.

The problem: UKH (aliased as onSessionRestored) is undefined when called.

Here's the chain:

1. I is initialized as permanently false:

let I = s$.useMemo(() => !1, [])

1. RW4 is called with enabled: I (i.e., enabled: false):

let {onBeforeQuery:FKH, onTurnComplete:vvH, onSessionRestored:UKH, ...} = RW4({enabled: I, ...})

1. When enabled is false, RW4 returns onSessionRestored: undefined instead of a function.
2. The useEffect that runs on mount unconditionally calls UKH(K) when initialMessages exist:

s$.useEffect(() => {
if (K && K.length > 0)
..., UKH(K) // ← crashes: UKH is undefined
}, [])

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.120

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Other

Additional Information

in ssh terminal on latest debian with claude code