fix(analytics): add proxy route and correct script URL for OpenPanel

- Add /api/op/[...path] proxy route to forward events to self-hosted OpenPanel
- Add scriptUrl=/api/op/op1.js to OpenPanelComponent
- Proxy prevents ad blockers from blocking tracking requests

src/app/api/op/[...path]/route.ts

@@ -0,0 +1,5 @@
+import { createRouteHandler } from "@openpanel/nextjs/server";
+
+export const { GET, POST } = createRouteHandler({
+  apiUrl: "https://op.nodecrew.me/api",
+});