feat(ui): add photo file handling in Vite config

* include new image assets in static/photos
* define __PHOTO_FILES__ for dynamic photo URLs
* update package.json and package-lock.json with @types/node

ui/src/app.d.ts

@@ -8,6 +8,9 @@ declare global {
 		// interface PageState {}
 		// interface Platform {}
 	}
+
+	// Filenames in static/photos, injected at build time (see vite.config.ts).
+	const __PHOTO_FILES__: string[];
 }
 
 export {};

ui/src/lib/components/PhotoBackground.svelte

@@ -2,14 +2,9 @@
   import { backOut, cubicIn } from "svelte/easing";
   import { browser } from "$app/environment";
 
-  const modules = import.meta.glob(
-    "../../../assets/photos/*.{jpg,jpeg,png,JPG,JPEG,PNG}",
-    {
-      eager: true,
-      import: "default",
-      query: "?url",
-    },
-  ) as Record<string, string>;
+  const photoUrls = __PHOTO_FILES__.map(
+    (name) => `/photos/${encodeURIComponent(name)}`,
+  );
 
   function shuffle<T>(items: T[]): T[] {
     const result = [...items];
@@ -56,7 +51,7 @@
 
   $effect(() => {
     if (!browser) return;
-    photos = shuffle(Object.values(modules));
+    photos = shuffle(photoUrls);
   });
 
   $effect(() => {