fix(master): seed the tag digest from running services and hide registry error text (#9)

internal/e2e/versions_test.go

@@ -117,14 +117,14 @@ func TestPollKeepsARollbackAfterAWebhookUpdate(t *testing.T) {
 	env.waitStatus(t, hook.ID, model.JobSucceeded)
 	svc, err = env.store.GetService(ctx, 1)
 	require.NoError(t, err)
-	assert.Equal(t, "sha256:e2e", svc.LastTagDigest, "the deployed digest of the tag is remembered")
+	assert.Equal(t, e2eDigest, svc.LastTagDigest, "the deployed digest of the tag is remembered")
 
 	pick, err := env.jobs.TriggerVersion(ctx, 1, 5, "alice")
 	require.NoError(t, err)
 	env.waitStatus(t, pick.ID, model.JobSucceeded)
 	jobsBefore := env.store.jobCount()
 
-	reg := &fixedRegistry{digests: map[string]string{slusk + ":main": "sha256:e2e"}}
+	reg := &fixedRegistry{digests: map[string]string{slusk + ":main": e2eDigest}}
 	p := poller.New(env.store, env.jobs, reg, env.m.broker, poller.Config{Workers: 1}, slog.New(slog.NewTextHandler(io.Discard, nil)))
 	p.Cycle(ctx)