Merged in feature/chatbot1 (pull request #223)

Chatbot functionality

* baseline working

* missing test file

* more tests

api/queryAPI/client_test.go

@@ -188,6 +188,12 @@ func initializeTestConfig(t testing.TB, cfg *ControllerConfig) {
 	// Reset the singleton config state for testing
 	serviceconfig.ResetConfigInitOnceTestOnly()
 
+	// Chatbot config is loaded via env tags during InitializeConfig and
+	// has required+notEmpty fields. Provide test placeholder values so
+	// the loader accepts the parse; production env supplies real values.
+	t.Setenv("CHATBOT_SERVICE_URL", "http://chatbot.test:8000")
+	t.Setenv("CHATBOT_API_KEY", "test-api-key")
+
 	// Initialize the base configuration
 	err := serviceconfig.InitializeConfig(cfg)
 	require.NoError(t, err)