Implemented client datasource

Client/streamhub/Protocol.cpp

@@ -553,9 +553,8 @@ bool ParseHistoryInfo(const std::string& json, HistoryInfoMsg& out) {
     out.signals.clear();
     out.enabled = false;
 
-    char tmp[16] = "";
-    jsonGetStr(json.c_str(), "enabled", tmp, sizeof(tmp));
-    out.enabled = (strcmp(tmp, "true") == 0);
+    /* "enabled" is a JSON boolean (unquoted true/false), not a string */
+    out.enabled = (strstr(json.c_str(), "\"enabled\":true") != nullptr);
 
     double df = 0.0;
     jsonGetDouble(json.c_str(), "durationHours", df);