add to e2e spec

Author: ochafik

tests/e2e/generate-grid-screenshots.spec.ts

@@ -22,6 +22,7 @@ const DEFAULT_WAIT_MS = 5000;
 // Extra wait time for slow-loading servers (tiles, etc.)
 const EXTRA_WAIT_MS: Record<string, number> = {
   "map-server": 45000, // CesiumJS needs time for map tiles
+  "pdf-server": 45000, // Chunked loading of file
 };
 
 // Servers to skip (screenshots maintained manually)