fix(analytics): connect directly to Rybbit to preserve real visitor IP

Changed Rybbit script loading from server-side rewrite to client-side direct
connection. This prevents Next.js from proxying the request, which was causing
all visitor IPs to show as the Hetzner server IP (138.201.11.251).

Before:
- Browser → Next.js → Rybbit (server-side proxy, loses client IP)

After:
- Browser → Rybbit (direct connection, real IP preserved)

Changes:
- layout.tsx: Use direct Rybbit URL for script src
- next.config.ts: Remove /api/script.js rewrite

next.config.ts

@@ -34,10 +34,8 @@ const nextConfig: NextConfig = {
   async rewrites() {
     const rybbitHost = process.env.NEXT_PUBLIC_RYBBIT_HOST || "https://rybbit.nodecrew.me";
     return [
-      {
-        source: "/api/script.js",
-        destination: `${rybbitHost}/api/script.js`,
-      },
+      // Note: /api/script.js now connects directly to Rybbit (client-side)
+      // to preserve real visitor IP instead of proxying through Next.js
       {
         source: "/api/track",
         destination: "/api/rybbit/track",