babysit-pr

Babysit an existing PR by running the manifest workflow. This is the author-side companion to `review-pr`: `review-pr` applies reviewer pressure through PR comments and thread advancement; `babysit-pr` drives the author-side lifecycle toward green and mergeable. They coordinate only through GitHub PR state and the Manifest. **Inputs.** Accept a PR URL, `--manifest <path>`, both, or neither, plus `--verification per-gate|consolidated|self`, optional `--verifier-model <model>`, `--ci`, and `--no-log` to disable the default journal. No PR URL means infer the current branch's upstream/open PR; halt with an actionable error when no single PR can be inferred. `--manifest <path>` supplies the strongest PR grounding and skips fresh synthesis. Omitted `--verification` means `per-gate`. After resolving that default, load the matching `do` verification reference and apply its policy validation before manifest synthesis or execution; the reference, not Babysit PR, owns mode-specific model support and evidence provenance. Without `--manifest`, remove the verification options before invoking `define` with `--babysit <pr-url> --autonomous`, read its `Manifest complete:` path, then continue. Never write either verification option into the Manifest. **Logging.** Unless `--no-log` is present, keep a persisted append-only journal across the tend, so a warm session that compacts mid-lifecycle keeps continuity — what was already tried and abandoned, and operational notes (retriggers, waits). It...