v0.1.2

Fix three issues found during a full-codebase review:

• Use the remote default branch when origin HEAD is available, allowing reviews without a matching local branch.
• Stop Claude when its owning worker dies in every execution mode, including read-only reviews and rescue.
• Prune interrupted job records and retain the latest finished result even when active workers fill the history budget.

Added four regression tests and documented the behavior in README.

Validation: npm run check passed, including all 168 tests using the fake Claude CLI.

Update the marketplace and reinstall the plugin:

codex plugin marketplace add linuxhq/cc-plugin-codex
codex plugin add claude@linuxhq

Start a new Codex session to load the updated plugin.