fix: honor automatic updates preference and add Settings controls

next.config.ts

@@ -1,6 +1,11 @@
+import { readFileSync } from "node:fs";
 import type { NextConfig } from "next";
 
+const pkg = JSON.parse(readFileSync(new URL("./package.json", import.meta.url), "utf8")) as { version: string; homepage: string };
+
 const nextConfig: NextConfig = {
+	// Public build metadata only; no new runtime Electron version API.
+	env: { LH_VERSION: pkg.version, LH_HOMEPAGE: pkg.homepage },
 	// Desktop target (Electron wrapper, 2026-09-17): standalone output = a
 	// self-contained .next/standalone/server.js the Electron shell spawns
 	// on 127.0.0.1. Harmless for plain web deploys (extra build output).