Fix Internal Request Issues

Fix all open GitHub issues labeled internal request in isolated worktrees, then open PRs.

Setup (once)

REPO=$(gh repo view --json nameWithOwner -q .nameWithOwner)
REPO_ROOT=$(git rev-parse --show-toplevel)
BASE_BRANCH=$(git symbolic-ref refs/remotes/origin/HEAD | sed 's@^refs/remotes/origin/@@')
mkdir -p .trees
gh label create "internal request fixed" --color "0e8a16" --force 2>/dev/null
gh label create "unable to resolve" --color "e4e669" --force 2>/dev/null

1. List Issues

Fetch open issues labeled internal request via GitHub MCP using $REPO. Post-fetch, exclude any with unable to resolve label or that already have an open PR targeting fix/issue-{number}.

If none remain, report "No open internal request issues" and stop.