v0.7.0

Phase 6 — E2E Object Recovery × RustFS

• E2E suite (//go:build e2e) against RustFS in Docker for Object Recovery restart restore (Snapshot-saved only)
• Manual GitHub Actions workflow (workflow_dispatch only): .github/workflows/e2e-object-recovery.yml
• Spec: docs/tests/e2e/e2e-spec.md

See #18