Issue-to-PR Resolver

Implement GitHub issue #$ARGUMENTS in homeassistant-ai/ha-mcp end-to-end.

Phase 1: Setup

Read the issue:

gh issue view "$ARGUMENTS" --repo homeassistant-ai/ha-mcp --json title,body,labels,comments,author

Create a worktree from repo root:

cd "$(git rev-parse --show-toplevel)"
git checkout master && git pull origin master
git worktree add "worktree/issue-$ARGUMENTS" -b "feature/issue-$ARGUMENTS"
git -C "worktree/issue-$ARGUMENTS" submodule update --init --recursive
cd "worktree/issue-$ARGUMENTS"