ログをloggerで吐き出すように

src/index.ts

@@ -1,13 +1,17 @@
 import express from "express";
+import Logger from "@src/logger";
 
 const app = express();
 const port = 3000;
 
+const logger = new Logger();
+logger.setTag("index.ts");
+
 app.get("/", (req, res) => {
     res.send("Hello World!");
 });
 
 app.listen(port, () => {
-    console.log(`Server is running on http://localhost:${port}`);
+    logger.info(`Server started! Listening on port ${port}`);
 });