v0.133.0: a restore-test can never fill a box's disk; leftovers retried on a timer (R-672, R-673)

Space preflight before anything is created (uncompressed size from the vzdump log / PBS
snapshot, x1.2 + 5 GiB, thin metadata, off the tested guest's pool when another storage
is eligible, unknown refuses, reported as a non-pass result). Failed scratch teardown and
the stale-lock sweep retried every 10 min (the sweep under the heavy-op gate). A thin
pool crossing 90% requests an immediate host report. Six red-proofs.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS

internal/reconcile/engine_test.go

@@ -213,7 +213,7 @@ func newEngine(t *testing.T, api GuestAPI, provider DesiredProvider) (*Engine, *
 	t.Cleanup(func() { j.Close() })
 	q := NewQueue()
 	t.Cleanup(q.Close)
-	e := NewEngine(EngineOptions{API: api, Queue: q, Journal: j, Provider: provider})
+	e := NewEngine(EngineOptions{API: api, Queue: q, Journal: j, Provider: provider, RestoreSpace: roomySpace{}})
 	return e, j, q
 }