New src/git/pr.ts helper wraps 'gh pr create'; returns { url } or { error }.
maybeCreateAutoPr() in update-job-status checks product.auto_pr, builds title
from story.code + task.title, writes pr_url to DB. Non-fatal: gh failure logs
a warning and leaves DONE status intact. Also syncs schema: auto_pr on Product,
pr_url on ClaudeJob.
Runs git push -u origin <branch> in the worktree. Detects no-changes
(HEAD = origin/main) before pushing. Classifies push failures into
no-credentials, conflict, or unknown via stderr pattern matching.
5 unit tests covering all paths.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Removes worktree dir via `git worktree remove --force` and deletes
the local branch by default; keepBranch=true preserves the branch.
Returns { removed: false } when the worktree path doesn't exist.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
