[DOCS] Korean localization: Update '디렉토리' to '디렉터리

Question

### Documentation Type

Typo or formatting issue

### Documentation Location

https://code.claude.com/docs/ko/setup

### Section/Topic

General/Multiple sections

### Current Documentation

_No response_

### What's Wrong or Missing?

Korean documentation uses '디렉토리' which is incorrect spelling. The standard Korean spelling is '디렉터리'.

### Suggested Improvement

Find and replace '디렉토리' → '디렉터리' in all Korean (/ko/) pages.

### Impact

High - Prevents users from using a feature

### Additional C