/wt:merge-pr - Merge PR and Clean Up Worktree

Description

Squash-merges an open GitHub PR for a story branch, deletes branches, and removes the local worktree. Designed for automated use from QA completion workflows.

Usage

/wt:merge-pr {STORY_ID}
/wt:merge-pr {STORY_ID} {PR_NUMBER}

Examples

/wt:merge-pr WINT-1012
/wt:merge-pr WINT-1012 42