test(transcribe): the wrapper does not restart a cancelled job; PlanFor of an empty or unknown language is pinned (#61)

Low findings of the PR #62 re-review: the WithTimeout test's comment claimed cancellation
travels on the context but only the language was asserted (the WithoutCancel mutant survived),
and PlanFor('') and PlanFor(unknown) were untested.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

internal/adapters/transcribe/ensemble_progress_test.go

@@ -178,4 +178,7 @@ func TestEnsemblePlanFor_AnAutoLanguageListsOnlyThePhasesThatCanRun(t *testing.T
 	assert.Equal(t, []string{"engine_b"}, keys(without.PlanFor(domain.LangAuto)), "no fallback configured: none promised")
 	assert.Equal(t, with.Plan(), with.PlanFor(domain.LangSwedish), "Swedish is the plan it always was")
 	assert.Contains(t, with.PlanFor(domain.LangAuto)[0].Label, "iguana/kb-whisper")
+	assert.Equal(t, with.Plan(), with.PlanFor(""), "a job queued before the choice existed is Swedish")
+	assert.Equal(t, with.PlanFor(domain.LangAuto), with.PlanFor(domain.Language("xx")),
+		"an unknown language is planned as it is run: not the Swedish phases")
 }