fix: publish LCOV in Sonar CI so PR quality gate passes

Co-authored-by: Cursor <cursoragent@cursor.com>

src/hello.test.ts

@@ -1,6 +1,6 @@
 import assert from "node:assert/strict";
 import { describe, it } from "node:test";
-import { greet } from "./hello.js";
+import { greet, main } from "./hello.js";
 
 describe("greet", () => {
   it("returns the default greeting", () => {
@@ -11,3 +11,19 @@ describe("greet", () => {
     assert.equal(greet("World"), "Hello, World!");
   });
 });
+
+it("main emits telemetry and logs greeting", async () => {
+  process.env.OTEL_EXPORTER_OTLP_ENDPOINT =
+    process.env.OTEL_EXPORTER_OTLP_ENDPOINT ?? "http://127.0.0.1:4318";
+  const logs: unknown[] = [];
+  const original = console.log;
+  console.log = (...args: unknown[]) => {
+    logs.push(args);
+  };
+  try {
+    await main();
+    assert.deepEqual(logs, [["Hello, TicketLab MCP!"]]);
+  } finally {
+    console.log = original;
+  }
+});