PR Review Status Sweep

This topology-preserving self-hosted port removes installation-specific identities, endpoints, and credentials while retaining the live workflow's nodes, edges, input mappings, guards, retries, cooldown, and triggers. Configure the declared template parameters and integrations before enabling it.

Prerequisite: the sweep node runs the agent-scoped script pr-review-status-sweep, which is not seeded. Author it before enabling the workflow, or every run fails at that node.