Serve compiled front from the same application

also add embedded build for production

internal/testutils/testutils.go

@@ -45,7 +45,7 @@ func ConnectDemo2User(router *gin.Engine) string {
 
 func connectUser(router *gin.Engine, loginJson string) string {
 	w := httptest.NewRecorder()
-	req, _ := http.NewRequest("POST", "/auth/login", strings.NewReader(loginJson))
+	req, _ := http.NewRequest("POST", "/ws/auth/login", strings.NewReader(loginJson))
 	router.ServeHTTP(w, req)
 	var parsedResponse loginResponse
 	err := json.Unmarshal(w.Body.Bytes(), &parsedResponse)