Looks fine to me, only issue I see is the lack of registration. When you have a chance, have a look at the native in the backend module to register your plugin to the store database.
Code:
/**
* Registers the plugin module for the webpanel to handle.
* It's recommended that all modules register & refresh each plugin load. This is required in order for the webpanel to manage modules properly.
*
* @param sName Name of the plugin, this is just for reference.
* @param sDescription Description of the plugin, this is just for reference as well.
* @param sVersion_ConVar Name of the version ConVar the plugin uses.
* @param sVersion Current version number of the plugin.
* @noreturn
*/
native Store_RegisterPluginModule(const String:sName[], const String:sDescription[], const String:sVersion_ConVar[], const String:sVersion[]);