Overview

• Add useAsyncLock, a new core hook for preventing overlapping async work by skipping concurrent calls while a lock is held.
• Return explicit execution results through runWithLock: { status: 'executed', data } when work runs and { status: 'blocked' } when a call is skipped.
• Export the hook from the core package, add English/Korean docs, and include a minor changeset for react-simplikit.

Checklist

• Did you write the test code?
• Have you run yarn run fix to format and lint the code and docs?
• Have you run yarn run test:coverage to make sure there is no uncovered line?
• Did you write the JSDoc?