fix(runner): separate failed operations from process shutdown status - #304

Complete .github/PULL_REQUEST_TEMPLATE.md in the PR description: missing sections: Outcome, Work authority, Plan, Changes and commits, Risk and rollback, Completion summary, Submission checklist; missing work-authority values: Work item / Issue, Proposal / decision, Assignment / checkpoint, Actor, Human authority, Agent / capacity provider, Exact base ref, Exact head ref; select exactly one contributor mode; Exact base ref must contain a full 40-character commit SHA; Exact head ref must contain a full 40-character commit SHA; ready PR has incomplete checklist items: The change is bounded to the stated work item and target repository. | Exact base and head refs are recorded and the branch is ready for review. | Verification and compatibility evidence are recorded above. | No plaintext secrets, credentials, machine state, or unrelated residue are included. | Plan, status, commits, and completion summary form a complete durable record. | Rollback or recovery steps are documented and executable.