fix(ssr): skip canvas/WebGL components on the server

requestAnimationFrame/document are browser-only; Three.js trophies,
particles, cursor, and loading screen now no-op during SSR. Add a
Node rAF shim as a safety net.

server.ts

@@ -1,5 +1,17 @@
 import 'dotenv/config';
 import 'zone.js/node';
+
+// Node has no rAF; polyfill before Angular SSR bootstraps (belt + suspenders
+// alongside browser-only guards in canvas components).
+if (typeof globalThis.requestAnimationFrame !== 'function') {
+  globalThis.requestAnimationFrame = ((cb: FrameRequestCallback) =>
+    setTimeout(() => cb(Date.now()), 16)) as unknown as typeof requestAnimationFrame;
+}
+if (typeof globalThis.cancelAnimationFrame !== 'function') {
+  globalThis.cancelAnimationFrame = ((id: number) =>
+    clearTimeout(id)) as unknown as typeof cancelAnimationFrame;
+}
+
 import { APP_BASE_HREF } from '@angular/common';
 import { CommonEngine } from '@angular/ssr/node';
 import express from 'express';