Add /restart WhatsApp command to restart warelay

src/infra/restart.ts

@@ -0,0 +1,14 @@
+import { spawn } from "node:child_process";
+
+const DEFAULT_LAUNCHD_LABEL = "com.steipete.warelay";
+
+export function triggerWarelayRestart(): void {
+  const label = process.env.WARELAY_LAUNCHD_LABEL || DEFAULT_LAUNCHD_LABEL;
+  const uid = typeof process.getuid === "function" ? process.getuid() : undefined;
+  const target = uid !== undefined ? `gui/${uid}/${label}` : label;
+  const child = spawn("launchctl", ["kickstart", "-k", target], {
+    detached: true,
+    stdio: "ignore",
+  });
+  child.unref();
+}