feat(master): show built-from-source services but never update them (#7)

internal/master/store/services_integration_test.go

@@ -193,3 +193,23 @@ func TestApplySnapshot_StoresConfigFiles(t *testing.T) {
 	require.Len(t, got, 1)
 	assert.Equal(t, withFiles.ConfigFiles, got[0].ConfigFiles)
 }
+
+func TestApplySnapshot_StoresBuilt(t *testing.T) {
+	s := openTestStore(t)
+	ctx := context.Background()
+	id := newAgent(t, s, "node-2")
+	built := slusk
+	built.Built = true
+	require.NoError(t, s.ApplySnapshot(ctx, id, worker, []protocol.Service{built}, t0))
+
+	got, err := s.ListServices(ctx)
+	require.NoError(t, err)
+	require.Len(t, got, 1)
+	assert.True(t, got[0].Built)
+
+	// A later report without the flag clears it.
+	require.NoError(t, s.UpsertService(ctx, id, "", slusk, t0.Add(time.Minute)))
+	got, err = s.ListServices(ctx)
+	require.NoError(t, err)
+	assert.False(t, got[0].Built)
+}