Add /hello endpoint

[Claude]

Implements a /hello endpoint that responds with "Hello!" per issue requirements.

Changes

• Added GET /hello route in index.js that returns "Hello!" text response
• Follows existing pattern with request logging and simple text response

app.get("/hello", (req, res) => {
  console.log(`${new Date()} ${req.method} ${req.path}`);
  res.send("Hello!");
});

Original prompt

---

This section details on the original issue you should resolve

<issue_title>issue 211</issue_title>
<issue_description>say hello</issue_description>

Comments on the Issue (you are @claude[agent] in this section)

• Fixes issue 211 #212