Commit, push, and open PR

See REFERENCE.md for commit-type table, auto-label map, PR body template.

Step 0: Gather context

Run these Bash commands before proceed:

• git status -sb -- working-tree state
• git diff HEAD -- staged + unstaged changes
• git branch --show-current -- current branch
• gh repo view --json defaultBranchRef -q '.defaultBranchRef.name' -- default branch
• git log --oneline -5 -- recent commits for style ref
• gh pr list --head $(git branch --show-current) --json number,url,title --jq '.[0] // empty' -- existing PR on branch

Prerequisites

1. Verify gh --version -- if missing, stop, ask user install
2. Verify gh auth status -- if not authed, ask user run gh auth login and stop
3. Verify inside git repo