Changed the default way to modify values in store. Added basic validation to stores. Using interfaces to DI store objects.

Requests/GetTTSVoices.cs

@@ -9,10 +9,10 @@ namespace HermesSocketServer.Requests
     {
         public string Name => "get_tts_voices";
         public string[] RequiredKeys => [];
-        private VoiceStore _voices;
+        private IStore<string, TTSVoice> _voices;
         private ILogger _logger;
 
-        public GetTTSVoices(VoiceStore voices, ILogger logger)
+        public GetTTSVoices(IStore<string, TTSVoice> voices, ILogger logger)
         {
             _voices = voices;
             _logger = logger;