Initialized proper project structure

internal/api/handler/health.go

@@ -0,0 +1,18 @@
+package handler
+
+import (
+	"net/http"
+
+	"github.com/robindittmar/dttmr-api/internal/api/response"
+)
+
+type healthResponse struct {
+	Status string `json:"status"`
+}
+
+func HealthHandler(w http.ResponseWriter, r *http.Request) {
+	resp := healthResponse{
+		Status: "OK",
+	}
+	response.JSON(w, http.StatusOK, resp)
+}