feat: implement version badge and easter egg in settings

next.config.ts

@@ -1,5 +1,22 @@
 import type { NextConfig } from "next";
 import createNextIntlPlugin from "next-intl/plugin";
+import { execSync } from "child_process";
+import { readFileSync } from "fs";
+import { join } from "path";
+
+let gitCommitHash = "unknown";
+try {
+  gitCommitHash = execSync("git rev-parse --short HEAD").toString().trim();
+} catch {
+  // git not available
+}
+
+let appVersion = "0.0.0";
+try {
+  appVersion = readFileSync(join(import.meta.dirname, "VERSION"), "utf-8").trim();
+} catch {
+  // VERSION file not found
+}
 
 const nextConfig: NextConfig = {
   output: "standalone",
@@ -7,6 +24,10 @@ const nextConfig: NextConfig = {
   turbopack: {
     root: import.meta.dirname,
   },
+  env: {
+    NEXT_PUBLIC_GIT_COMMIT: gitCommitHash,
+    NEXT_PUBLIC_APP_VERSION: appVersion,
+  },
 };
 
 const withNextIntl = createNextIntlPlugin();