refactor: ヘルスチェック関連のコードの位置を変更

typing-server/api/handler/health.go

@@ -0,0 +1,14 @@
+package handler
+
+import (
+	"log/slog"
+	"net/http"
+)
+
+func HealthCheck(w http.ResponseWriter, r *http.Request) {
+	w.WriteHeader(http.StatusOK)
+	_, err := w.Write([]byte("API is running"))
+	if err != nil {
+		slog.Error("failed to write response: %v", err)
+	}
+}

typing-server/api/router/router.go

@@ -4,14 +4,13 @@ import (
 	"net/http"
 
 	"github.com/go-chi/chi/v5"
-	"github.com/su-its/typing/typing-server/api/controller/system"
 	"github.com/su-its/typing/typing-server/api/handler"
 )
 
 func SetupRouter() http.Handler {
 	r := chi.NewRouter()
 
-	r.Get("/health", system.HealthCheck)
+	r.Get("/health", handler.HealthCheck)
 
 	r.Get("/users", handler.GetUsers)