Aggiungi override probe TCP keepalive

scripts/build-tcp-keepalive.js

@@ -0,0 +1,32 @@
+const { spawnSync } = require("child_process");
+const path = require("path");
+
+if (process.platform !== "linux") {
+    process.exit(0);
+}
+
+const nativeDir = path.join(__dirname, "..", "native", "tcp_keepalive");
+
+function runNodeGyp(command, args) {
+    const result = spawnSync(command, args, {
+        cwd: nativeDir,
+        stdio: "inherit"
+    });
+    return result.error ? false : result.status === 0;
+}
+
+let built = false;
+
+try {
+    const nodeGyp = require.resolve("node-gyp/bin/node-gyp.js");
+    built = runNodeGyp(process.execPath, [nodeGyp, "rebuild"]);
+} catch (err) {
+    built = runNodeGyp("node-gyp", ["rebuild"]);
+    if (!built) {
+        built = runNodeGyp("npx", ["node-gyp", "rebuild"]);
+    }
+}
+
+if (!built) {
+    console.warn("tcp keepalive native helper was not built; TCP_KEEPCNT override will be disabled");
+}