test(11-07): cover lighthouse realtime and the Centrifugo driver

- lighthouse: TestSuppression (Widget silenced, Gadget not, nesting,
  stale outer ctx), TestBulkEmitsOnce, TestBroadcastEdges (zero-key batch,
  update actor, id-only delete, method contract, multi-channel, savepoint),
  TestBroadcastPublishFailure, TestFromSelectsDriver, TestMountSurfaces,
  TestRegistry under -race, drivers, args JSON, Bind (coverage 91.7%)
- centrifugo: TestTokenClaims, TestTokenHandler, TestClientRequests,
  TestClientLoadConfig and a TestProxy table porting the WinterCMS WS-005,
  WS-007 and WS-013 cases (coverage 92.4%)

modules/lighthouse/postgres_test.go

@@ -22,7 +22,7 @@ var (
 	lhSQL   *sql.DB
 	lhDSN   string
 	lhPGErr error
-	dbSeq      atomic.Int64
+	dbSeq   atomic.Int64
 )
 
 func TestMain(m *testing.M) {