Complete versioned refresh coordination and reconciliation

[Traviinam]

Summary

• publish coherent repository, topology, refs, Worktree, and operation revisions while retaining last-good stale data
• coordinate selected-first scoped refresh, staggered non-selected polling, filesystem invalidation, bounded Git reads, deduplication, cancellation, and fallback discovery
• integrate operation lanes, timeout-safe Unknown Outcome reconciliation, upstream observation, and protocol invalidation forwarding

Verification

• npm test (185 tests)
• npm run typecheck
• npm run lint
• npm run format:check
• npm run build
• Standards and spec reviews: no remaining actionable findings

Closes #7