fix getAllFormulaJson no loglevel

src/db/db_service.cpp

@@ -440,6 +440,7 @@ json DBService::getAllFormulaJson() {
   for (auto& f : all) {
     json j_formula;
     j_formula["id"]                   = f.id;
+    j_formula["loglevel"]             = f.loglevel;
     j_formula["formula_id"]           = f.formula_id;
     j_formula["stoped_gs"]            = f.stoped_gs;
     j_formula["continued_gs"]         = f.continued_gs;