Smoke run 3 fired 'ensure_workspace: refresh fetch returned non-zero'
9 times per run because each evidence(task_id) call triggered
ensure_workspace -> fetch. The workspace doesn't change in subseconds.
Added a 30s TTL cache keyed by workspace path. ensure_workspace(force=True)
bypasses the cache for callers that genuinely need a fresh fetch.
Net effect: log noise drops from 9 entries to 1-2 per run; orchestrator
spends less time waiting on redundant git fetches.
Spec ref: docs/superpowers/specs/2026-05-12-post-smoke-3-fixes-design.md
section C2.
