feat(analytics): add Rybbit proxy rewrites and env vars

- Add Next.js rewrites to proxy /api/script.js and /api/track through self-hosted Rybbit
- This bypasses ad blockers that would block rybbit.nodecrew.me directly
- Add NEXT_PUBLIC_RYBBIT_HOST and NEXT_PUBLIC_RYBBIT_SITE_ID env vars to K8s deployment

next.config.ts

@@ -5,6 +5,19 @@ const withNextIntl = createNextIntlPlugin();
 
 const nextConfig: NextConfig = {
   output: 'standalone',
+  async rewrites() {
+    const rybbitHost = process.env.NEXT_PUBLIC_RYBBIT_HOST || "https://rybbit.nodecrew.me";
+    return [
+      {
+        source: "/api/script.js",
+        destination: `${rybbitHost}/api/script.js`,
+      },
+      {
+        source: "/api/track",
+        destination: `${rybbitHost}/api/track`,
+      },
+    ];
+  },
   images: {
     remotePatterns: [
       {